How we scored it
11-residue peptide of Ala, Arg, Asp, Gly, Leu, Ser, Thr, Tyr; all atoms are amino-acid atoms and no cap is stated, so natural mass equals total 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
Built by solid-phase peptide synthesis from amino acids obtained by fermentation or from protein hydrolysates. No petrochemical building block is part of the structure described by CosIng.
In plain English
A short synthetic peptide, a chain of 11 amino acids, used as a skin-conditioning ingredient. It is assembled in a laboratory by linking amino acids, which are obtained by fermentation or from plant and animal proteins.
CosIng definition: Oligopeptide-51 is a synthetic peptide containing 11 amino acids consisting of alanine, arginine, aspartic acid, glycine, leucine, serine, threonine, and tyrosine
References
- 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.
- 2OLIGOPEPTIDE-51. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3OLIGOPEPTIDE-51. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=OLIGOPEPTIDE-51