MAVQEN
Cope or Not

supplements

Oral Collagen Peptides

~ MIXED

Meta-analyses show small but real improvements in skin hydration and elasticity; industry funding muddies the water.

B

Evidence grade B

At least one good RCT or consistent controlled studies

Mechanism

Hydrolyzed collagen di/tripeptides survive digestion and may act as signaling molecules stimulating fibroblast collagen synthesis.

Citations

  • Oral collagen supplementation: a systematic review of dermatological applicationsJournal of Drugs in Dermatology · 2019

The full read

Pooled RCT data (10+ trials) shows statistically significant improvements in skin elasticity and hydration after 8–12 weeks. Caveats: most trials are manufacturer-funded, effect sizes are modest, and protein-sufficient diets may capture much of the benefit. Reasonable as a cheap adjunct; a poor substitute for tretinoin and SPF.

Aesthetic information, not medical advice. Verdicts reflect the cited evidence at time of writing.