REVVY® · Science · Longevity · Expertise

The REVVY
Journal

Expert interviews, ingredient science, longevity protocols and brand updates — curated for those who take their health seriously.

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Featured · Expert Interview

April 2026  ·  Collagen Science

Collagen: What the Science Really Says

Dr. Elena Hartmann-Spencer on hydrolyzed peptides, the role of Peptan®, BioPerine® bioavailability and what longevity medicine actually demands from a collagen formula.

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Dr. med. Elena Hartmann-Spencer
Longevity · Internal Medicine · REVVY® Scientific Advisor
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