Skin is an organ
Not every longevity expert works in a lab or a clinic full of machines. Liv Kraemer came to it from a different door entirely — a career that began in modelling, turned into medicine, ran through umbilical-cord cell research at Columbia and the Charité in Berlin, and landed on the thing most scientists quietly skip past: the skin. Today she is a skin-longevity doctor in Zurich.
Her argument is simple and slightly provocative: cosmetology is a real pillar of longevity, not vanity. Skin is the body’s largest organ; looking after it is prevention. She never liked the word “aesthetic” — “it’s more prevention, it’s taking care of your skin.” This is exactly why Marek put cosmetology into the Biohacking Upgrades of the Longevity Map, where most experts leave it out.
And she is ruthless about simplicity. Not 12,000 products — the right ingredients: fruit acids (AHAs), retinols, and a sunscreen, used to push the skin’s cell turnover. Skin and gut are one system — the skin–gut axis — so care works best when skincare and what you take inside move together. “A cream is just a consistency,” she says; the ingredient is what matters.
Underneath it all is a physician’s ethic. A doctor should inform, not sell. “Fear happens because of unknowledge” — give people the knowledge and they make good decisions and stop chasing every miracle jar. Everything, she says, is connected: “like a Swiss watch — a couple of wheels have to move because the big hand is moving.”
