Briefly read some literature regarding collagen supplementation. Although I do not obsess over skin health or anti-aging routines, I do take a somewhat active approach by wearing facial sunscreen daily, exercising, eating healthy, and taking additional supplements like omega-3s and zinc.
I don’t know why I never paid more attention to collagen before - I’ve always known about the skin health benefits, and once I started seeing it offered at boujee cafés in affluent neighbourhoods, I should have known it was time to take a deeper dive and see what all the hype is about.
Honestly, although I know I should probably do more research before committing to an entire post on this topic, I think a recent systematic review and meta-analysis suffices, as the evidence is fairly clear.
Below are some key take-home messages from this study:
Effects of Oral Collagen for Skin Anti-Aging: A Systematic Review and Meta-Analysis (Szu-Yu Pu et al., 2023)
Oral hydrolyzed collagen supplementation improves skin hydration compared with placebo.
Oral hydrolyzed collagen also improves skin elasticity, a key marker of skin aging.
Consistency matters more than collagen source - benefits have been observed with fish, bovine, porcine, and chicken collagen.
Time is critical - meaningful improvements are most reliably seen after 8-12 weeks of daily use.
Short-term collagen use (2-4 weeks) is unlikely to produce visible skin changes.
Collagen works partly by stimulating fibroblasts, increasing hyaluronic acid and type I collagen production in the skin.
Collagen peptides are absorbed intact, enter the bloodstream, and accumulate in skin tissue - they are not simply broken down into amino acids.
Improvements in skin hydration tend to appear earlier than changes in elasticity.
Collagen’s effects are real but modest - it supports skin quality rather than producing dramatic anti-aging reversal.
Oral collagen should be viewed as a long-term supportive strategy, not a replacement for sunscreen, retinoids, or adequate overall protein intake.
It’s clear that although collagen supplementation is not a one-way golden ticket to healthy skin throughout aging, it is a piece of the puzzle that should not be overlooked. For those who are taking an active approach to health and are already checking more important boxes (such as exercising consistently), collagen may work well.
I’m likely going to start taking some form of oral hydrolyzed collagen after doing more research on brands. Hoping to notice some results by summer!