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A cosmetic ingredient, not regulated or approved as a drug. This page is educational information only, not medical advice.
IndexedBuilt automatically from public databases on 2026-09-30. Not yet hand-reviewed by PLOBT.How this works →

Dipeptide-4

Cosmetic ingredient

Cosmetic short peptide

Evidence score
16/ 100
Thin evidence

Very thin human evidence

  • Regulatory standing. Cosmetic ingredient, not regulated as a drug
  • Animal / preclinical only. Evidence is largely animal or in-vitro
  • No registered human trials. Nothing registered on ClinicalTrials.gov
  • No sources. Nothing cited to verify

Computed with the same four public criteria as every profile. The human-evidence grade on an indexed profile is set automatically and may change when it is hand-reviewed. It is not a safety score, not a purity rating, and not medical advice, and not a claim that this compound treats, cures, or prevents any condition.

What it is

Dipeptide-4 is a small two amino acid peptide used as an ingredient in cosmetic skin care products. The listed formula (C5H10N2O3S) suggests a sulfur-containing dipeptide, but its exact identity and proposed mechanism in skin are not clearly documented in the gathered data. Cosmetic peptides of this kind are generally marketed for skin conditioning or appearance effects.

What the evidence shows

Automatic summaryAnimal / preclinical

It is not FDA-approved and has no registered human clinical trials; about 15 published papers exist, and it is unclear how many directly test this ingredient in people. Any skin benefits claimed in marketing are not established by controlled human evidence.

This name is shared with unrelated compounds in public databases, so trial and paper counts are not shown here, and the evidence score counts no registered trials. Treat this profile as a starting point only.

Sources

Risks, side effects and study doses are only published on hand-reviewed profiles. Want this one reviewed, or spotted something wrong? Tell us.