Evidence-backed FAQ
Does collagen help skin hydration and elasticity?
Direct answer
Pooled randomized-trial evidence in adults suggests oral collagen peptides may modestly improve skin hydration and elasticity.[1]
What the evidence shows
Across the pooled trials, collagen peptides were studied at about 2.5 to 10 g/day, predominantly in female adults.[1]
Important limitations
The trials were heterogeneous, often small, and subject to possible bias. Average effects were modest and may not apply equally across products or individuals.[1]
Related questions
- What outcomes were measured?
- Who was studied most often?
Read the full evidence summary
This FAQ is the concise answer. The linked research page provides the full study context, populations, doses, outcomes, and limitations.
References
- Effects of Oral Collagen for Skin Anti-Aging: A Systematic Review and Meta-Analysis. Nutrients. 2023. Systematic review and meta-analysis View source →