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collagen peptidesFinding

Collagen peptides has no detected effect on stratum corneum hydration (corneometry)

no difference foundModerate evidenceFinding

01 · The sentence it was drawn from

“Lesional stratum corneum hydration (F(1, 25) = 0.16, p = 0.694, d = 0.155), and lesional TEWL (F(1, 25) = 1.91, p = 0.179, d = 0.553), did not show statistically significant differences between the CP-G and P-G.”
Quoted verbatim from Oral Administration of Specific Bioactive Collagen Peptides in the Treatment of Moderate Forms of Atopic Dermatitis: A New Approach.
This finding among the 2 findings on its endpoint

collagen peptides

Stratum corneum hydration (corneometry)

no difference found

Who
Adults with moderate atopic dermatitis (SCORAD 15-40), per-protocol population; lesional skin site; corticosteroid cream (triamcinolone) and body lotion permitted in both arms
Dose studied
5 g daily, dissolved in 250 mL water

Moderate evidencePMID 41758763 · 2026

02 · The study

Study
RCT
Duration
3 months

Evidence, by strength

  • strong
  • moderatethis finding
  • limited
  • very limited
  • insufficient

03 · The paper

Skin pharmacology and physiology
What else it reported2 findings · 0 compounds · 2 endpoints

04 · To cite this finding

This address does not change

https://catalystproject.ai/e/01M6Y1Q90GP0GRHJRJ6M9KMK7K