Dermatologists Skeptical of Collagen Supplement Claims

Collagen supplements, widely promoted for skin, hair, and joint health, face skepticism from dermatologists. While some studies suggest benefits for skin hydration and joint support, experts emphasize that evidence is limited and often industry-funded. Dr. Hadley King notes the strongest evidence is for skin health, but cautions that ingested collagen does not directly deposit into the skin. Dr. Helen He explains that peptides may stimulate the body's own collagen production. Dr. Blair Murphy-Rose warns that the body distributes amino acids broadly, not specifically to skin. Dr. Angela Lamb questions absorption rates. Dr. Hope Mitchell says results are modest and recommends brands like Nutrafol, Vital Proteins, and Vida Glow. All agree supplements are not essential and should not replace proven skincare like sunscreen and retinol. Potential side effects include digestive issues, and biotin content may interfere with thyroid tests. The supplements are often animal-derived, unsuitable for vegans.