Acetyl Tetrapeptide-11



Acetyl Tetrapeptide-11 at a glance

  • A synthetic peptide
  • Helps skin become healthier by interacting with a signaling protein in skin’s surface
  • Assists in keeping skin's architecture firm

Acetyl Tetrapeptide-11 description

A synthetic peptide created by the acetylation (a chemical reaction that joins a stronger substance with a weaker one) of tetrapeptide-11, which is made up of amino acids leucine, proline and tyrosine. Acetyl tetrapeptide-11 helps skin become healthier by interacting with a signaling protein in skin’s surface that addresses how it looks and feels.

Acetyl Tetrapeptide-11 references

  • Cosmetics, May 2017, ePublication
  • Journal of Biological Chemistry, April 2012, pages 12,204-12,216

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Ingredient ratings


Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.


Necessary to improve a formula's texture, stability, or penetration.


Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.


There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.


May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.


We couldn't find this in our ingredient dictionary. We log all missing ingredients and make continuous updates.

Not rated

We have not yet rated this ingredient because we have not had a chance to review the research on it.