Collagen Supplements: What 5 Dermatologists Actually Think

Reported by Vogue.

Collagen supplements have quietly taken over the wellness aisle — powders, pills, liquids, the works — and with them comes a cascade of promises: firmer skin, stronger nails, better joints, smoother digestion. The appeal is obvious. Taking something daily that might slow the clock feels both proactive and low-effort. According to Vogue, board-certified dermatologist Hope Mitchell, MD, traces the obsession directly to "social media, influencer culture, and increased awareness of preventing aging," noting that the non-invasive nature of supplements makes them irresistible to anyone chasing accessible anti-aging solutions. Angela Lamb, MD, director of the Westside Mount Sinai Dermatology Faculty Practice, puts it even more plainly: people want to feel like they're working on aging from the inside out, not just slathering things on top.

Here's where it gets complicated. The supplements themselves are made from hydrolyzed collagen — collagen broken into smaller peptides and amino acids, often combined with vitamin C or biotin. But NYC-based dermatologist Hadley King, MD, is clear that the evidence base across all those sweeping claims is thin. The most credible data we currently have points specifically to skin health. And even that comes with a significant asterisk: Helen He, MD, assistant professor of dermatology at the Icahn School of Medicine at Mount Sinai, explains that ingested collagen doesn't travel directly to your skin like a homing pigeon. Instead, those peptides may trigger the body's own signaling pathways to ramp up collagen production — which could eventually benefit the skin, among other tissues. Could. Dr. King adds that whether collagen preferentially concentrates in skin after consumption is still genuinely unknown.

Temper Your Expectations Before You Add to Cart

Even where the science is most promising, results are — according to Dr. Mitchell — "modest rather than dramatic," and only possible with consistent, long-term use. Blair Murphy-Rose, MD, makes the body's indifference to your intentions plain: those amino acids get deployed across countless biological functions the moment you swallow them. Your body is not reading your skincare goals. Dr. Lamb cuts to the practical issue: absorption versus processing is the real question no one has fully answered yet.

So who actually benefits? Dr. He argues these supplements make the most sense for people who are already doing the work — consistent skincare routine, daily SPF, targeted aesthetic treatments — and who understand collagen is an add-on, not a foundation. She also flags real considerations worth knowing: digestive side effects like bloating and nausea, the fact that most formulas are derived from animal sources (relevant if you're vegan), and that biotin — a common pairing ingredient — can interfere with thyroid and cardiac stress test markers.

The unanimous verdict from every expert: collagen supplements are not a replacement for sunscreen, retinol, or antioxidants, and if you're already eating adequate protein and maintaining a nutritious diet, Dr. King says you may already be producing the amino acid building blocks your body needs. Dr. Mitchell recommends vetting brands carefully — she points to Nutrafol's Collagen Infusion, Vital Proteins Collagen Peptides, and Vida Glow's Original Marine Collagen as well-formulated options — and she's refreshingly honest: a meaningful portion of what's being sold is marketing dressed up in lab language, and the claims consistently outrun the actual evidence.

Collagen supplements won't hurt you, but no powder is going to do what SPF and retinol have decades of data doing.

Read the original at Vogue.