The Science of Collagen: Does It Really Work for Skin Firmness?
G&B Evidence-based guide — how collagen supplements work, which products to choose, dosing, safety and practical tips. Introduction What is Collagen? How Collagen Supplements Work Clinical Evidence Top Products How to Take Collagen Risks & Side Effects FAQ Conclusion References Introduction Collagen supplements are everywhere — powders, capsules, marine formulas, and “beauty blends” paired with vitamin C or hyaluronic acid. But does oral collagen truly improve skin firmness, hydration or wrinkles? This article reviews the biology, the human clinical trials, meta-analyses, recommended products and safe dosing to help you decide. What is Collagen? Collagen is the body’s most abundant structural protein. In skin, collagen (mostly type I and III)...