Peter Attia· MD
finding the right shampoo and conditioner regimen for you has to do with some of the variables that I just mentioned the scalp pH level moisture level oil level what's your natural sebum production what is your hair care regimen look like does it require a lot of product or hairspray or things like that that need to be rinsed and washed out or are you in a dirty environment do you live in the city where there's smoke and toxins and things like that you know and debris that you need to wash out of your hair on a regular basis