Sam Harper, founder and editor
Sam Harper is the founder of Metabolic Skincare and the editor of the guides on this site. He writes and edits the posts on the Metabolic Skincare blog.
Background
Every few months, skincare gets a new ingredient that promises what the last one promised. Sam watched that cycle for years and noticed that a handful of reliable ingredients did most of the work in almost every routine. All of them work on the outside of the skin. Meanwhile, the layer of skin that holds its structure is supplied from the inside, and almost nobody was talking about it.
So he read the trials and built Deep Structural Support, a daily skincare supplement, from what they showed. Sam works with consumer brands, and his work as a founder has been covered by The New York Times, Forbes, and BuzzFeed.
How the guides are written
Each guide answers one question about skin and what the research says about it. The studies a guide draws on are listed at the end of the post, with links so you can read them yourself. Numbers in a guide come from the studies it cites.
Corrections
If you find an error in a guide, email info@metabolicskincare.com and it will be checked and corrected.
