Related Experiment Video
Updated: Jul 23, 2025

An Improved Method for the Preparation of Type I Collagen From Skin
Published on: January 21, 2014
Effects of Oral Collagen for Skin Anti-Aging: A Systematic Review and Meta-Analysis
Szu-Yu Pu1, Ya-Li Huang2, Chi-Ming Pu3,4
1School of Medicine, College of Medicine, Taipei Medical University, Taipei City 110, Taiwan.
Abstract:
This paper presents a systematic review and meta-analysis of 26 randomized controlled trials (RCTs) involving 1721 patients to assess the effects of hydrolyzed collagen (HC) supplementation on skin hydration and elasticity. The results showed that HC supplementation significantly improved skin hydration (test for overall effect: Z = 4.94, p < 0.00001) and elasticity (test for overall effect: Z = 4.49, p < 0.00001) compared to the placebo group. Subgroup analyses demonstrated that the effects of HC supplementation on skin hydration varied based on the source of collagen and the duration of supplementation. However, there were no significant differences in the effects of different sources (p = 0.21) of collagen or corresponding measurements (p = 0.06) on skin elasticity. The study also identified several biases in the included RCTs. Overall, the findings suggest that HC supplementation can have positive effects on skin health, but further large-scale randomized control trials are necessary to confirm these findings.
Related Concept Videos
The Effect of Aging on Tissues
Renewal of Skin Epidermal Stem Cells
Tissue Renewal without Stem Cells
However, failure of such a system...
Collagens are the Major Structural Proteins of ECM
Connective tissue proper includes loose...
Fibril-associated Collagen
For example, the type II collagen fibrils in cartilage have covalently bound type IX fibril-associated collagens at regular intervals. Other types of fibril-associated collagens are...
Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...

