← Library
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 →

Acetyl tetrapeptide-11

Cosmetic ingredient

Cosmetic signal peptide

Also known as: Syniorage

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

Acetyl tetrapeptide-11, sold under the trade name Syniorage, is a short synthetic peptide used as an ingredient in topical skin care products. Manufacturer materials describe it as supporting skin firmness by influencing proteins involved in cell cohesion and the structure of the outer skin layers, but this mechanism comes mainly from supplier lab work.

What the evidence shows

Automatic summaryAnimal / preclinical

There are no registered human clinical trials and no indexed published papers, so claimed skin benefits rest on manufacturer data rather than independent human research. It is regulated as a cosmetic ingredient and is not FDA-approved for any medical use.

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.