Database/Skin Conditioning/Tripeptide-32
100% natural origin · ISO 16128

Is Tripeptide-32 natural?

Yes. Proline, serine and threonine (fermentation/hydrolysate amino acids) are joined by amide bonds with no added petrochemical mass.

INCI nameTripeptide-32
CAS1185583-20-3
FormulaC12H22N4O5 · 302.33 Da
FunctionSkin Conditioning
FeedstockSynthesised by coupling the standard amino acids proline,…

How we scored it

Pro-Ser-Thr tripeptide, C12H22N4O5 (302.33 Da), entirely natural amino acid residues; coupling leaves no added mass, 1.0.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

Synthesised by coupling the standard amino acids proline, serine and threonine, sourced from fermentation or protein hydrolysis. No petrochemical route exists.

In plain English

A small peptide made from three natural amino acids, used to condition skin.

CosIng definition: Tripeptide-32 is the synthetic peptide consisting of proline, serine and threonine

Structure

2D structure of Tripeptide-32

(2S)-1-[(2S,3R)-2-[[(2S)-2-amino-3-hydroxypropanoyl]amino]-3-hydroxybutanoyl]pyrrolidine-2-carboxamide

PubChem CID 44200646 ↗

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 2Tripeptide-32. PubChem CID 44200646. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3TRIPEPTIDE-32. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4TRIPEPTIDE-32. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=TRIPEPTIDE-32