Andrew Huberman· PhD
there is a component in for example collagen supplementation that is forgotten about quite a bit and that's the increase in Blood osmolality and I learned this in the fitness world... we found that people who supplemented with any powdered protein Source doesn't matter collagen Albin whey and more so with people who supplement with creatine that there is an increase in blood o or plasma osmolality so the solute concentration increased in the blood which draws water in... one of the reasons the way collagen works as your blood osmolality increases you draw a little bit more water into the vessels which plumps up the appearance of the skin