Source

de Miranda 2021 — Hydrolyzed collagen systematic review and meta-analysis

Reviewed by SkinKnowledgeBase Editorial TeamLast updated May 20, 2026

Quick Summary

Systematic review and meta-analysis used for oral hydrolyzed collagen evidence on hydration, elasticity, wrinkles, and firmness-related measures.

Structured source facts
Source typepeer_reviewed

What Studied

Systematic review and meta-analysis of randomized controlled trials of oral hydrolyzed collagen supplementation and skin-aging outcomes.

Main Findings

The review evaluated trials reporting skin wrinkles, hydration, elasticity, and firmness; public copy uses it as supportive but modest supplement evidence.

Why It Matters

It anchors the oral-collagen evidence discussion while avoiding claims that drinks visibly reshape or structurally change skin.

Original Source

Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta-analysis

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Source
de Miranda 2021 — Hydrolyzed collagen systematic review and meta-analysis
Quick Summary
Systematic review and meta-analysis used for oral hydrolyzed collagen evidence on hydration, elasticity, wrinkles, and firmness-related measures.
What Studied
Systematic review and meta-analysis of randomized controlled trials of oral hydrolyzed collagen supplementation and skin-aging outcomes.
Main Findings
The review evaluated trials reporting skin wrinkles, hydration, elasticity, and firmness; public copy uses it as supportive but modest supplement evidence.
Why It Matters
It anchors the oral-collagen evidence discussion while avoiding claims that drinks visibly reshape or structurally change skin.
Supports
question_can-collagen-drinks-actually-firm-skin