SupplementsSkin, joints, and hair โ collagen supplements promise a lot. Here's what the evidence actually supports.
The most abundant structural protein in the body, found in skin, tendons, ligaments, and joints โ production naturally declines with age, which is the basis for most collagen supplement marketing.
Several studies have found modest improvements in skin elasticity and hydration with consistent collagen supplementation over 8-12 weeks โ a genuine, if moderate, effect, not simply marketing fiction.
Some evidence supports collagen (particularly type II) for joint comfort in people with existing joint issues, though the effect size is generally modest and shouldn't be expected to reverse significant joint damage.
The body can synthesize collagen from adequate protein and vitamin C intake through regular food โ supplementing directly is a reasonable convenience option, not a requirement for people already eating a balanced, protein-adequate diet.
Decades of research, a strong safety record, and still surrounded by myths. Here's the straightforward version.
