The Claim

Oral tripeptide supplements increase skin hydration by approximately 5.8 units on validated scales in adults with signs of skin aging.

Source: Oral and topical peptides for skin aging: systematic review and meta-analysis of randomized controlled trials

What the research says

Supports is higher

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

Supports
88score
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 oral tripeptide supplements raises skin hydration by about 5.8 units on standardized measurement scales in adults showing skin aging.

See the scientific wording

Oral tripeptide supplements increase skin hydration by approximately 5.8 units on validated scales in adults with signs of skin aging, based on a meta-analysis of 19 randomized controlled trials involving 1,341 participants.

Why this might work

When you swallow tripeptide supplements, your gut breaks them into tiny pieces that enter your blood. These pieces travel to your skin and signal the building cells to make more hyaluronic acid, a substance that holds water in the skin. This makes the skin plumper and more hydrated.

Supported mechanismbased on 1 study

What the research says

1 study

  1. Study: Oral and topical peptides for skin aging: systematic review and meta-analysis of randomized controlled trials

    The study found that taking collagen peptide pills increased skin moisture by about 5.8 points, just like the claim says.

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.