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Weekly · Sunday Morning

Five longevity claims.
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Rapamycin extends mouse lifespan 9–14%
NAD+ precursors reverse aging in humans
Blue-light glasses improve sleep quality
Walking 10 min after meals blunts glucose
Verdict change — caffeine half-life downgraded

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How to Improve & Protect Your Skin Health & Appearance | Dr. Teo Soleymani — Whalespan

Content›Video›How to Improve & Protect You…

How to Improve & Protect Your Skin Health & Appearance | Dr. Teo Soleymani

Andrew Huberman2h 46m · 2024-08-19

Claims Made

306

Claims Supported

216

Support Rate

71%

Support rate

216 of 306 claims supported

216 supported90 partial / not

Claims from this content

257

✓Well SupportedAG1 is a vitamin, mineral, probiotic drink with adaptogens designed to meet foundational nutritional needs and provide insurance for adequate fruit and vegetable intake.✓Well SupportedAndrew Huberman drinks Athletic Greens twice a day, typically once in the morning and again in the afternoon or late afternoon, mixed with water and lemon or lime juice.✓Well SupportedAndrew Huberman dissolves one packet of Element in 16-32 ounces of water upon waking and during exercise for hydration and electrolyte intake.✓Well SupportedHelix Sleep mattresses and pillows are tailored to individual sleep needs assessed through a quiz.Well Supported

More from Andrew Huberman

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Huberman X thread: creatine and aging

Andrew Huberman on Morning Sunlight

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A. Volkovreader

4h

Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.

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2d

Would love a "what would change this verdict" RSS feed. Sign me up if it exists.

✓

Quality sleep, regulated by core body temperature changes, is foundational for mental health, physical health, and performance.

✓Well SupportedAG1 supports the gut microbiome, which in turn supports the immune system and the gut-brain axis, impacting mood, energy, focus, and overall mental and physical health.

✓Well SupportedViewing morning sunlight organizes sleep-wake rhythms, which in turn increases motivation for exercise, focused work, and general well-being.

✓Well SupportedThe Helix Dusk Mattress is reported to improve sleep depth, duration, and quality.

✓Well SupportedAndrew Huberman uses a JWV whole body panel for red light therapy 3-4 times per week for 10-20 minutes per session, and a JWV handheld light at home and while traveling.

✓Well SupportedZero alcohol consumption is healthier than any level of consumption, with two drinks per week being the upper limit for non-alcoholics to avoid additional health risks.

✓Well SupportedCreatine can improve hydration by increasing water uptake into cells and may indirectly aid muscle mass increase by supporting strength gains and subsequent hypertrophy.

✓Well SupportedMineral-based sunscreens are a better choice if concerned about chemicals or applying frequently.

✓Well SupportedJuv red light therapy can improve muscle recovery, skin health, wound healing, acne, pain, inflammation, mitochondrial function, and vision.

✓Well SupportedEven slight dehydration can significantly diminish cognitive and physical performance.

✓Well SupportedPhysical barriers like shirts, hats, and jackets provide good protection from the sun and do not have negative effects on the skin.

✓Well SupportedDiets that promote increases in glucose and insulin, such as sugary, high glycemic index, and fried foods, can worsen acne.

✓Well SupportedAndrew Huberman wears Roa eyeglasses at night for driving or reading and Roa sunglasses during the daytime when it is bright or when driving into sunlight.

✓Well SupportedMineral-based sunscreens, shade, hats, and clothing offer excellent protection against UV radiation and are safer alternatives to chemical sunscreens.

✕Not SupportedAlcohol generally has a net negative effect on skin health.

✓Well SupportedIdeal cleansers are mild, fragrance-free, and tested to be hypoallergenic or non-comedogenic, with Cetaphil and Dove being examples.

✓Well SupportedNonablative fractionated laser resurfacing can reduce skin cancer risk by 20%.

✓Well SupportedRed and near-infrared light therapies are effective for improving skin health and appearance, potentially by increasing vascular flow.

✓Well SupportedAmino acids from collagen, such as glycine and proline, can be used by the body to synthesize proteins, including collagen.

✓Well SupportedJuvv red light therapy devices use clinically proven wavelengths of red and near-infrared light in combination to trigger optimal cellular adaptations.

◐Partially SupportedSupplemental collagen may benefit skin, hair, and nails, but supporting data is not yet convincing.

◐Partially SupportedCollagen supplementation can increase blood osmolality, drawing water into the skin and plumping its appearance.

✕Not SupportedChemical-based sunscreens are advised against for children younger than 6 months due to their high capacity for transdermal absorption.

◐Partially SupportedShowering and using cleanser twice a day or even once a day can be excessive for some individuals.

◐Partially SupportedPolypodium supplementation can increase the minimal erythema dose of UV exposure.

◐Partially SupportedAcute stress can lead to immediate hair loss due to the release of messengers, hormones, and chemical mediators.

◐Partially SupportedPolypodium leucotomos can help block the effects of visible light, which is beneficial for conditions like melasma.

◐Partially SupportedA proper sleep environment, including the mattress, is critically important for good sleep quality.

◐Partially SupportedAblative laser resurfacing is more aggressive, effective, and carries more risk and downtime than nonablative resurfacing.

◐Partially SupportedYearly check-ups with a dermatologist are highly advised for individuals with a history of genetically inherited skin cancers.

✓Well SupportedHigh UV exposure damages collagen, elastin, and DNA, leading to wrinkles, hyperpigmentation, and potentially cancer.

◐Partially SupportedTwelve sunscreen ingredients, including avobenzone, octinoxate, and oxybenzone, lack sufficient data to be generally recognized as safe and effective.

◐Partially SupportedMineral-based sunscreens and chemical sunscreens have different mechanisms of action.

✕Not SupportedSome chemical-based sunscreens can cross the blood-brain barrier and cause endocrine disruption and nervous system dysregulation.

◐Partially SupportedDermatologists can inject corticosteroids into pimples for a more potent reduction in redness.

✕Not SupportedLong-term alcohol use is associated with lifestyle choices that negatively impact skin health, such as neglecting skincare routines, hydration, and dietary habits.

◐Partially SupportedNo study has demonstrated that diligent use of topical sunscreens reduces disease-specific death from skin cancer.

✓Well SupportedSun exposure provides benefits beyond vitamin D synthesis.

◐Partially SupportedLaser treatments can be used for improving skin appearance and preventing certain skin cancers.

◐Partially SupportedThe majority of harmful or fatal skin cancers do not originate in chronically sun-exposed areas.

✓Well SupportedThe FDA has shifted the onus to manufacturers of sunblocks to prove their safety, as there is no evidence they are safe.

◐Partially SupportedFor every one melanoma diagnosis, there are approximately ten non-melanoma skin cancers.

✕Not SupportedOver-cleansing the skin is a problem in hyper-hygienic societies.

◐Partially SupportedMineral-based inorganic sunscreen is applied to the face, arms, neck, and ears when exposed to intense midday or late-day sun.

✕Not SupportedVaping and smoking are detrimental to erectile function and general sexual health in both males and females because nicotine is a vasoconstrictor.

✕Not SupportedAlcohol consumption has negative short-term and long-term effects on the skin, including dehydration and increased sebum production.

✕Not SupportedPregnant or breastfeeding women should avoid retinoids due to the risk of fetal developmental disruption.

◐Partially SupportedSkin health and appearance improve when individuals move away from stressors.

◐Partially SupportedDiets increasing insulin and mTOR signaling are pro-acne, while those lowering blood glucose and insulin are anti-acne.

◐Partially SupportedCaffeine consumption may cause changes in skin color or vasoconstriction in individuals with sensitive skin conditions like rosacea.

◐Partially SupportedLow-inflammatory diets, such as the Mediterranean or Paleo-like diets, can improve skin appearance and health.

◐Partially SupportedRosacea commonly presents in four forms: redness, pimples, enlarged nose, and ocular.

◐Partially SupportedDiligent sunscreen use decreases the incidence of melanoma and basal cell carcinoma formation, but its effect on mortality from these cancers is unknown.

✕Not SupportedNicotine is a vasoconstrictor that leads to faster skin aging and increased risk of poor wound healing with chronic use.

◐Partially SupportedPrescription-strength retinoids have been histologically verified to improve collagen and elastin in the skin.

◐Partially SupportedOmega-3 fatty acids from walnuts, flax, and fatty fish should be consumed for skin health.

◐Partially SupportedPhototherapy using UV light in the 311-312 nanometer range can suppress the skin's immune system and treat psoriasis.

◐Partially SupportedEating mostly unprocessed or minimally processed foods helps keep inflammation lower compared to eating more processed foods.

◐Partially SupportedSun exposure, within the limits of skin tolerance, is beneficial for overall health.

◐Partially SupportedFor acne-prone skin, a lighter, non-comedogenic moisturizer is recommended, whereas eczema-prone skin benefits from greasier ointments for better barrier protection.

◐Partially SupportedAlcohol can exacerbate rosacea by acting as a vasodilator, impairing the gut microbiome, and disrupting sleep.

✓Well SupportedMidday sun has a higher UV index, increasing the risk of burning from prolonged exposure, but sun exposure is still considered beneficial.

◐Partially SupportedA high-protein, anti-inflammatory diet including animal-source proteins, fruits, and vegetables is optimal for skin health.

✕Not SupportedOmega-3 supplementation can thin the blood, leading to increased bruising and necessitating discontinuation before surgery.

✕Not SupportedHuman placental extract is not recommended for skin rejuvenation due to better alternatives.

◐Partially SupportedAnimal-source proteins are generally preferred over plant proteins for skin health due to better bioavailability and complete amino acid profiles.

◐Partially SupportedHPV strains 1, 2, and 4 cause warts on hands and feet, strains 6 and 11 cause genital warts, and strains 16, 18, 31, and 33 cause cancer.

◐Partially SupportedAn mRNA vaccine has shown promise in improving melanoma survival rates in patients who have undergone surgery and chemotherapy.

◐Partially SupportedIndividuals with a high number of moles have an increased risk for melanoma.

◐Partially SupportedThe HPV vaccine is effective in older ages and recommended for anyone who is sexually active or generally for all individuals.

◐Partially SupportedAnnual surveillance exams are recommended as a minimum for monitoring skin health, especially for individuals with many moles.

◐Partially SupportedWhile most non-melanoma skin cancers are not life-threatening, they can be functionally and cosmetically disfiguring.

◐Partially SupportedOne in three Americans may develop skin cancer by 2030.

◐Partially SupportedThe Gardasil vaccine protects against HPV strains 16, 18, 31, and 33, which are associated with cancer.

◐Partially SupportedNew guidelines extend the on-label use of the HPV vaccine up to the late 40s for both men and women.

◐Partially SupportedApproximately 15-20 minutes of sun exposure on forearms is sufficient for vitamin D synthesis.

◐Partially SupportedAlcohol, UV light, spicy foods, hot beverages, emotions, and life stressors can trigger rosacea redness and flushing.

◐Partially SupportedSun powder can reduce non-melanoma skin cancer risk by up to 30% when taken daily.

◐Partially SupportedSun exposure offers a unique wellness component that improves mood and appearance, in addition to vitamin D benefits.

◐Partially SupportedPolypodium leucotomos supplementation can help prevent sunburns, increase time spent outdoors, and boost sunscreen efficacy.

◐Partially SupportedSelective photothermolysis allows targeting specific structures in the skin, like blood vessels, while leaving surrounding tissues undisturbed.

◐Partially SupportedThe pulse dye laser (595 nm) is the gold standard for treating broken blood vessels.

◐Partially SupportedMineral-based sunscreens are recommended over chemical sunscreens due to concerns about chemical components.

◐Partially SupportedSun exposure is related to skin cancer.

◐Partially SupportedSome individuals' gut microbiomes are highly resistant to dietary and environmental changes.

◐Partially SupportedTreatments for scalp conditions like psoriasis involve topicals or medications that suppress the skin's immune activity and do not affect the hair.

◐Partially SupportedPre-treating mice with red light therapy before UV exposure resulted in significantly fewer UV-induced skin changes.

◐Partially SupportedWall panels for red light therapy tend to be more effective than battery-powered face masks due to higher energy output and density.

◐Partially SupportedIncreased blood flow to the dermal papilla of the hair, potentially enhanced by red light therapy, may stimulate new hair growth.

◐Partially SupportedBlue light, when used in conjunction with red light, can offer some improvement for skin illnesses like acne due to its antimicrobial properties.

◐Partially SupportedSkin cancers do not always follow the trajectory of hyperplasia, metaplasia, dysplasia, and carcinoma, suggesting that cumulative mutations alone do not explain all skin cancer development.

◐Partially SupportedUV exposure's role in premature aging is clear, though the exact mechanism by which UV-induced mutations lead to skin cancer is equivocal.

◐Partially SupportedEuropean countries have lower showering frequencies than the United States but similar incidences of common skin conditions.

◐Partially SupportedHistamine release from allergies can cause puffy eyes due to increased water retention in the skin.

◐Partially SupportedSquamous cell carcinoma is expected to cause three times as many deaths in the United States as melanoma this year.

◐Partially SupportedSeborrheic dermatitis is commonly treated by reducing yeast overgrowth with medicated shampoos and dampening the immune response to the yeast.

◐Partially SupportedHigh glycemic index foods and sugary processed foods worsen acne by contributing to an inflammatory response that drives sebum production, bacterial growth, and impairs the skin's immune response.

◐Partially SupportedSun protection approaches should be customized based on the goal, such as preventing aging versus reducing cancer risk, or managing sun sensitivity.

◐Partially SupportedThe hair cuticle is lost with age and in androgenetic alopecia.

◐Partially SupportedOver-cleansing can eradicate the skin's natural microbiome, disrupting its symbiotic relationship and creating an environment for pathogens to thrive.

◐Partially SupportedMoisturizers replenish skin hydration and minimize transepidermal water loss.

◐Partially SupportedOver-the-counter skincare products often lack therapeutic concentrations of active ingredients because they are regulated as cosmetics rather than drugs.

✕Not SupportedExcessive sun exposure can be detrimental.

◐Partially SupportedGenetics and immune system play a significant role in skin cancer development.

◐Partially SupportedAn SPF of 30 or greater is recommended for adequate sun protection because real-world application is typically half the amount used in SPF testing.

✕Not SupportedThere is no evidence that consuming food changes or supplements like collagen quantifiably increases skin collagen or elastin density, as these substances do not specifically traffic to the skin.

◐Partially SupportedBags under the eyes are caused by fluid retention due to lymphatic changes or age-related fat herniation.

◐Partially SupportedOverly complex, multi-step skincare routines increase the risk of negative skin reactions to ingredients.

◐Partially SupportedHigh stress can accelerate aging, as illustrated by presidents aging more rapidly than matched controls during a four-year period.

◐Partially SupportedPhysical trauma to the skin recruits an immune response leading to increased MMPs that degrade collagen and elastin, resulting in acne scars.

◐Partially SupportedRed light therapy is used for hair restoration, post-procedure recovery, and improving skin health after UV damage.

◐Partially SupportedCleansing needs are dependent on individual skin's oiliness, with older individuals potentially requiring less frequent cleansing.

◐Partially SupportedWhen choosing a facial cleanser, especially for oily skin, select one that effectively removes oil and is defined by personal skin needs.

◐Partially SupportedPlantar warts can be caused by a form of HPV and are typically transmitted in environments like locker rooms.

◐Partially SupportedMoisturizers treat eczema by sealing the skin barrier and preventing environmental allergens from entering.

◐Partially SupportedScalp flaking and redness are due to the immune system's response to irritants like yeast or self-antigens.

◐Partially SupportedCalming the immune system with topical steroids or biologics targeting interleukins is a treatment for eczema.

◐Partially SupportedThe three most common skin cancers show UV mutation signatures when tumors are sequenced.

◐Partially SupportedShampoos can strip natural oils from the hair, making it feel limp or dull.

◐Partially SupportedVitiligo is closely associated with other autoimmune conditions such as atopic dermatitis, autoimmune thyroid disease, and autoimmune anemia.

◐Partially SupportedPatients with sun-sensitive medical conditions like lupus require the most sun protection.

◐Partially SupportedHigher zinc concentration in mineral sunscreens offers better UV protection but may result in a chalkier appearance.

◐Partially SupportedSkin is an organ that can regenerate, heal itself when injured, and be used to study diseases.

◐Partially SupportedSun Powder can be used for internal sun protection to allow for longer sun exposure without reapplication.

◐Partially SupportedMild psoriasis is commonly treated with creams, lotions, moisturizers, topical steroids, and salicylic acid.

◐Partially SupportedNewer and exciting treatments exist for various skin conditions, ranging from cosmetic to life-threatening.

◐Partially SupportedVitiligo is an autoimmune condition where the immune system attacks melanocytes.

◐Partially SupportedIndividuals with a genetic predisposition for early aging may need stricter UV avoidance to mitigate risk.

◐Partially SupportedWhen selecting a moisturizer, look for products that are non-comedogenic.

◐Partially SupportedReducing circulating blood glucose and insulin, and reducing inflammation, can help decrease acne.

✕Not SupportedFragrances in skincare products can trigger allergic responses or exacerbate eczema flares.

✕Not SupportedInjecting too much corticosteroid (less than 0.1 milliliter) for acne can cause a permanent atrophic divot in the skin that requires surgery to fix.

◐Partially SupportedMineral-based sunscreen with SPF above 30 provides sufficient broad-spectrum coverage.

◐Partially SupportedDiet and weight loss can significantly improve psoriasis by reducing inflammation and improving insulin resistance.

◐Partially SupportedHigh blood pressure resolved upon discontinuing protein and creatine supplementation in some individuals.

◐Partially SupportedNatural sources like bone broth and animal meats are considered superior to collagen peptides in powder form.

◐Partially SupportedCaffeine intake can cause transient vasoconstriction in the skin's capillaries and arterioles, usually followed by compensatory vasodilation, resulting in minimal and transient effects on the skin.

◐Partially SupportedChronic high caffeine intake may lead to increased sebum production in the skin.

◐Partially SupportedDr. Teo Soleymani had an angioma treated three times with a pulse dye laser, which eliminated the vessel but caused a significant bruise lasting almost a month.

◐Partially SupportedUVB radiation is implicated in redness and early skin cancer changes, while UVA radiation is linked to premature photoaging and certain melanomas.

◐Partially SupportedTargeting the immune system, rather than just the skin, is an effective strategy for treating psoriasis.

◐Partially SupportedNarrow-band ultraviolet B light therapy can treat psoriasis and vitiligo by modulating the immune system, increasing vascularity, and improving blood flow.

◐Partially SupportedNewer drugs offer targeted therapy with high efficacy for psoriasis, compared to older treatments involving broad immune suppression with increased risks for infections and skin cancers.

◐Partially SupportedPsoriasis is an autoimmune condition driven by overactive immune cells and specific interleukins that accelerate skin cell turnover.

◐Partially SupportedDigestive products of certain foods processed by gut bacteria can be highly pro-inflammatory, potentially explaining improvements in skin conditions after eliminating specific foods.

◐Partially SupportedPsoriasis has a strong hereditary or genetic component and is often associated with psoriatic arthritis.

◐Partially SupportedPale conjunctiva in children can indicate iron deficiency.

◐Partially SupportedMineral sunscreens absorb UV radiation without undergoing chemical change.

◐Partially SupportedA warm compress may help a pimple with a small white tip and minimal pain expel itself, but pushing or stretching is not recommended.

◐Partially SupportedSeborrheic dermatitis and psoriasis are distinct scalp conditions causing redness, flaking, and dryness.

◐Partially SupportedAblative laser resurfacing is typically performed once every five years, while nonablative resurfacing is recommended annually or biannually.

◐Partially SupportedChemical sunscreen ingredients have been detected in breast milk, amniotic fluid, blood plasma, and urine, indicating systemic absorption.

◐Partially SupportedMicrodermabrasion primarily removes the stratum corneum, which consists of dead skin cells without nuclei.

◐Partially SupportedLaser treatments target through the epidermis and into the dermis, controlling depth and heat energy.

◐Partially SupportedThe necessary frequency of skin cleansing is determined by an individual's skin oiliness.

◐Partially SupportedConsuming a diet with a slight caloric excess may cause acne.

◐Partially SupportedChemical sunscreens absorb ultraviolet radiation and dissipate its energy as heat.

◐Partially SupportedHigh salt content in meals can lead to fluid retention and puffiness around the eyes upon waking.

◐Partially SupportedFor acne-prone skin, cleansing helps remove excess sebum that feeds acne-causing bacteria.

◐Partially SupportedSome individuals have genetics predisposing them to early skin aging, which can be mitigated by strict UV avoidance.

◐Partially SupportedA 56-year-old mechanic is dying of squamous cell carcinoma that originated on the back of his ear.

◐Partially SupportedFamily history and genetics play the largest role in predisposition for skin cancer development.

◐Partially SupportedUnscented Dove soap has been consistently used for skin cleansing.

◐Partially SupportedSun protection demonstrably reduces premature aging of the skin.

◐Partially SupportedOral supplements can protect the skin from burning and reduce skin cancer risk.

◐Partially SupportedSun exposure can negatively impact skin appearance and health.

◐Partially SupportedTopical scalp treatments generally do not affect hair loss or hair growth.

◐Partially SupportedAblative laser resurfacing can result in skin regrowing without scarring.

◐Partially SupportedClothing, shields, shade, and hats are better than topical sunscreens for sun protection.

◐Partially SupportedTopical sunscreens are effective at preventing premature photoaging and signs of sun damage.

◐Partially SupportedMineral-based sunscreens are likely a better option for sun protection.

✕Not SupportedSome sun exposure contributes to overall wellness beyond vitamin D synthesis.

◐Partially SupportedCertain alcohol products like kombucha can be healthy for the gut microbiome, while high-percentage alcohols can act as anesthetics and gut paralytics.

◐Partially SupportedGenetic factors, particularly in Asian populations, cause rapid skin flush due to difficulty breaking down acetaldehyde from alcohol metabolism.

◐Partially SupportedHistological comparison studies on collagen supplements show equivocal results regarding collagen density.

◐Partially SupportedConsuming collagen protein or whey protein can cause a spike in plasma protein, which is an aesthetic benefit.

◐Partially SupportedThe skin's surface turns over approximately every 28 days, with stem cells generating new skin cells.

◐Partially SupportedTeo Soleymani does not typically wear sunblock on overcast days or when viewing morning sunlight, especially when the sun is low in the sky.

◐Partially SupportedA 27-year-old patient developed metastatic melanoma in a sun-protected area.

◐Partially SupportedAfter pimples pop, clean with a gentle cleanser and avoid topical antibiotics or hydrogen peroxide.

◐Partially SupportedVaccination against HPV may lead to the resolution of warts caused by non-targeted strains due to cross-antigenicity.

◐Partially SupportedTopical and oral medications exist to treat rosacea by suppressing bacterial/mite growth and immune response.

◐Partially SupportedLevels of chemical sunscreen ingredients found in blood can be 200 to 500 times the upper limit defined by Suns green criteria.

◐Partially SupportedAvoiding environmental triggers such as fragrances, preservatives, and seasonal allergens is a key strategy in managing eczema.

◐Partially SupportedWhile temporary creams can blanch rosacea redness, lasers are more effective for treating the blood vessels involved.

◐Partially SupportedVaccines may be developed for all skin cancers in the future.

◐Partially SupportedA prescription-strength retinoid is recommended over over-the-counter retinol.

◐Partially SupportedVaccines prime the immune system to recognize and attack specific targets.

◐Partially SupportedDendritic cell vaccines show promise in treating brain tumors like glioblastoma and melanoma.

✕Not SupportedCleansers with benzoyl peroxide, salicylic acid, or alcohol-based astringents can strip essential skin oils and eliminate the beneficial skin microbiome.

◐Partially SupportedStress can lead to hair loss, with hair regrowth occurring after the stressor is removed.

◐Partially SupportedAcne in adolescence and adulthood (25-35) is caused by overproduction of sebum, bacterial proliferation, and immune response.

◐Partially SupportedEffective treatment of acne requires reducing sebum production, eliminating acne-causing bacteria, and calming the immune system.

◐Partially SupportedTattoos make it difficult to survey for skin growths and changes in moles, hindering early detection of skin cancers.

◐Partially SupportedOld-school ablative lasers effectively remove sun damage, wrinkles, precancers, and skin cancers but result in significant downtime.

◐Partially SupportedTopical sunscreens help reduce the incidence of common skin cancers but have less effect on basal cell carcinoma.

◐Partially SupportedBreakouts in rosacea are thought to be triggered by skin organisms and immune dysregulation.

◐Partially SupportedCleansing the skin removes symbiotic microbes, potentially allowing pathogens to colonize and cause problems.

◐Partially SupportedOlder individuals may not need to cleanse their skin daily due to reduced sebum production.

◐Partially SupportedThe FDA may restrict claims that sunscreens prevent premature aging.

◐Partially SupportedSunscreens are regulated by the FDA as over-the-counter nonprescription drugs.

◐Partially SupportedPrescription retinoids protect skin, maintain a youthful appearance, reduce skin cancer risk, stimulate new collagen growth, and may cause initial redness or peeling.

◐Partially SupportedTreatment for vitiligo often involves suppressing the skin's immune response with topical creams, steroids, calcineurin inhibitors, or specific UV light wavelengths.

◐Partially SupportedPrescription retinoids activate transcription factors and nuclear messaging hormones by binding retinoic acid receptors, potentially activating genes like the Sonic Hedgehog pathway.

◐Partially SupportedEczema is caused by genetic barrier defects, environmental triggers, and an overactive immune response.

◐Partially SupportedPrescription-strength topical retinoids, such as tretinoin and adapalene, are recommended to improve skin quality, appearance, and reduce skin cancer risk.

◐Partially SupportedJAK inhibitors represent a recent advancement in treating refractory vitiligo by blocking the Janus kinase pathway.

◐Partially SupportedThe HPV vaccine can improve the burden of disease for conditions like plantar warts.

◐Partially SupportedImmunosuppressed patients have difficulty fighting viral conditions like plantar warts due to compromised immune systems.

◐Partially SupportedPatients with vitiligo have a significantly lower incidence of skin cancer due to immune surveillance.

◐Partially SupportedAvoiding sugar binges significantly improves skin by preventing breakouts for individuals following a ketogenic or Atkins-style diet.

✕Not SupportedOver-the-counter retinols often lose efficacy within one year, making prescription retinoids the only truly effective option.

◐Partially SupportedDuring acute stress, a fight-or-flight response constricts blood vessels in the skin to redirect blood flow to muscles, potentially making the skin appear pale or gaunt.

◐Partially SupportedSkin cancers can develop in sun-protected areas due to HPV.

◐Partially SupportedHigh periods of stress can lead to more rapid aging.

◐Partially SupportedStress reduction techniques are valuable for skin care.

◐Partially SupportedThe effectiveness of red light therapy devices is variable due to a lack of regulation regarding energy output, light density, and treatment duration.

◐Partially SupportedSkim and nonfat dairy products, rather than whole fat dairy, can cause acne flares, often due to added emulsifiers that create a glycemic response.

◐Partially SupportedNicotine gum and patches are less problematic for skin health than smoking or vaping.

✕Not SupportedDrinking a large amount of water or fluids has not been shown to improve skin health or hydration status in individuals living a balanced or sedentary life, as skin hydration is largely genetically determined.

◐Partially SupportedTattoos are not inherently bad for the skin, but challenges include ensuring the ink is not an allergen and that sterile equipment is used to avoid bloodborne pathogens.

◐Partially SupportedOintments are the most moisturizing but greasy, creams are water emulsions with oil, and lotions are typically powders in water.

◐Partially SupportedChemical sunscreen compounds like oxybenzone, octocrylene, and octinoxate may cause endocrine disruption or affect the nervous system.

◐Partially SupportedJars of moisturizer are more occlusive and moisturizing but can cause acne; pump bottles are lighter and less moisturizing.

◐Partially SupportedChronic stress deteriorates the quality of the dermis and subcutaneous fat.

◐Partially SupportedNon-comedogenic moisturizers are tested not to clog pores and are a basic consideration for avoiding additional skin problems.

◐Partially SupportedIndividuals with dry or sensitive skin should minimize cleansing to preserve skin barrier protection and moisturization.

◐Partially SupportedPsoriasis incidence is higher in northern latitudes with less sun intensity compared to equatorial latitudes.

◐Partially SupportedBar soaps tend to have fewer preservatives than gel or liquid cleansers.

◐Partially SupportedThick moisturizers like Aquaphor are suitable for eczema but can cause breakouts in individuals prone to acne.

✕Not SupportedExpensive skincare products are not necessarily better than cheaper alternatives like petroleum jelly.

✕Not SupportedPopping pimples can cause scarring by recruiting MMPs that digest deeper skin layers.

◐Partially SupportedRetinoids, supplements, and nutrition will be discussed in relation to skin health and appearance.

◐Partially SupportedLower sun exposure, particularly during winter months, may be associated with Seasonal Affective Disorder (SAD) and a perception of poorer health.

◐Partially SupportedMidday sun exposure is beneficial for overall well-being and mood.

◐Partially SupportedWalking in the sun reduces stress responses and improves well-being and mental health.

◐Partially SupportedMetastatic skin cancer was the number one non-transplant-related cause of death in transplant patients in the early 1990s.

◐Partially SupportedWhole body photography, mole mapping, and AI-based software can track moles and identify changes.

◐Partially SupportedIndividuals with vitiligo have a significantly lower incidence of skin cancer due to enhanced immune surveillance.

◐Partially SupportedThere has been a rapid increase in skin cancer development in genital areas and the mouth caused by HPV, affecting younger patients under 40.

◐Partially SupportedNutrition and avoiding excess alcohol and nicotine are important for skin health.

◐Partially SupportedSun exposure reduces stress, improves mood, and can lead to measurable decreases in cortisol response and improvements in skin appearance and texture.

◐Partially SupportedRed light and near-infrared light therapies have a long history, with a Nobel Prize awarded for photobiomodulation in the early 1900s for Lupus treatment.

◐Partially SupportedSun exposure is beneficial, but one should avoid burning and reaching the point where skin turns red, as this indicates critical UV exposure levels.

◐Partially SupportedThe skin, hair, and nails act as a biosensor and can serve as the first barometer of illness.

◐Partially SupportedModulating the gut microbiome through anti-inflammatory dietary habits can decrease the intensity and severity of inflammatory skin conditions.

◐Partially SupportedThere is a connection between the gut microbiome and skin health.

◐Partially SupportedA healthy gut microbiome and sufficient fiber intake are linked to reduced systemic inflammation.

◐Partially SupportedUV light has a lower incidence of skin cancer in patients with vitiligo, suggesting a complex role in skin health and immunity.

◐Partially SupportedThe visible hair on the scalp is not a living entity; only the stem cells in the hair follicle (papilla and bulge region) within the skin are alive.

◐Partially SupportedHaving evidence-based discussions and challenging dogma in a scientifically sound way is important.

◐Partially SupportedPolypodium supplement helps prevent sunburns and increases topical sunscreen efficacy.

◐Partially SupportedAllowing sweat to dry on the skin can cause irritation from crystallized salts and serves as a food source for yeast.