The Claim

Daily supplementation with 5 g hydrolyzed collagen and 80 mg vitamin C for 16 weeks does not significantly improve skin elasticity or hydration compared to placebo in women aged 40-65.

Source: The Effects of Dietary Supplementation with Collagen and Vitamin C and Their Combination with Hyaluronic Acid on Skin Density, Texture and Other Parameters: A Randomised, Double-Blind, Placebo-Controlled Trial

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
77score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

Taking 5 grams of hydrolyzed collagen and 80 milligrams of vitamin C daily for 16 weeks does not improve skin elasticity or hydration in women aged 40-65 beyond what a placebo does.

See the scientific wording

Daily supplementation with 5g hydrolyzed collagen and 80mg vitamin C for 16 weeks does not significantly improve skin elasticity or hydration compared to placebo in women aged 40-65.

Why this might work

When you take collagen and vitamin C supplements, your stomach breaks down the collagen into tiny pieces called peptides. These peptides enter your blood and reach your skin. Inside your skin, they tell the cells that make collagen to work harder and also slow down the breakdown of existing collagen. This should make the skin thicker and firmer. However, in women aged 40 to 65, this process did not make the skin more elastic or hydrated compared to a placebo.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: The Effects of Dietary Supplementation with Collagen and Vitamin C and Their Combination with Hyaluronic Acid on Skin Density, Texture and Other Parameters: A Randomised, Double-Blind, Placebo-Controlled Trial

    The study found that taking collagen and vitamin C supplements for 4 months did not make the skin more elastic or more hydrated compared to a placebo, which matches the claim.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.