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Cosmetic ingredient dictionary

Acetyl Tetrapeptide-3 in cosmetics: what it is and what it does

Acetyl Tetrapeptide-3 is a cosmetic ingredient that protects the skin from outside harm. Open Beauty Facts finds it in 5 products, most often hair care.

By Bravoora teamUpdated Sources checked 2 sourcesHow we check

What does Acetyl Tetrapeptide-3 do in a product?

In a cosmetic product, Acetyl Tetrapeptide-3 protects the skin from outside harm. The EU’s CosIng database lists this job for it: skin protecting.

skin protecting

What other names and numbers does Acetyl Tetrapeptide-3 have?

CosIng reference
54141

Which products contain Acetyl Tetrapeptide-3?

Open Beauty Facts finds Acetyl Tetrapeptide-3 in the ingredient lists of 5 of the 22,021 products it has a list for, most often hair care and serums.

  • Hair care2
  • Serums1

Products with it, by country of sale: United States 2 · Morocco 1 · Italy 1 · Saudi Arabia 1.

Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Acetyl Tetrapeptide-3 turns up, not how much of the market it is.

Bravoora reads this ingredient for everyone you shop for: an allergy or intolerance, a vegan or vegetarian diet, a calorie or protein goal, and the labels on supplements and skincare too. Build a profile · For dermatologists, dietitians and doctors

Sources

The job, the description and the EU annex entry are CosIng’s; the fragrance allergens are the EU Annex III names Bravoora’s label checker reads; the product counts are Open Beauty Facts’.

  1. European Commission: CosIng cosmetic ingredient database (functions, description, EU annex entry)
  2. Open Beauty Facts: product database, 77,506 products, read 13 October 2026, ODbL

Contains information from Open Beauty Facts, which is made available here under the Open Database License (ODbL). Read the licence · Download this dictionary’s data · How we check

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