Database/Hair Conditioning/Hydrolyzed Sericin
100% natural origin · ISO 16128

Is Hydrolyzed Sericin natural?

Yes. Sericin is a natural silk protein broken into peptides/amino acids by hydrolysis, with no petrochemical mass added.

INCI nameHydrolyzed Sericin
CAS73049-73-7
FunctionHair Conditioning · Skin Conditioning
FeedstockObtained by acid, alkaline or enzymatic hydrolysis of…

How we scored it

Hydrolysed silk protein; hydrolysed proteins are 1.0 by this site's convention (amino acid building blocks retain full mass).
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

Obtained by acid, alkaline or enzymatic hydrolysis of sericin, the natural protein coating silk fibres from silkworm cocoons. Entirely protein-derived.

In plain English

Silk protein that has been broken down into smaller pieces. Used to condition hair and skin, helping them feel smoother.

CosIng definition: Protein hydrolyzates, sericin

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. 2HYDROLYZED SERICIN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3HYDROLYZED SERICIN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HYDROLYZED%20SERICIN