Database/Hair Conditioning/Hydrolyzed Wheat Protein PG-Propyl Methylsilanediol
Mostly natural · ISO 16128

Is Hydrolyzed Wheat Protein PG-Propyl Methylsilanediol natural?

Mostly. The protein carries almost all of the mass; the small silane modifier is petrochemical.

INCI nameHydrolyzed Wheat Protein PG-Propyl Methylsilanediol
FunctionHair Conditioning · Skin Conditioning
FeedstockWheat protein is hydrolysed to peptides and reacted…

How we scored it

Hydrolysed wheat protein (natural) carrying a small PG-propyl methylsilanediol modifier (petrochemical silane), about one per 1,000 Da of peptide, as for the live keratin and silk versions: 0.80.
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

Wheat protein is hydrolysed to peptides and reacted with a synthetic silane (a dihydroxy-methylpropylsilyl propanediol ether) that bonds to the protein. The protein fraction varies by grade, so 70% is assumed.

In plain English

A modified wheat protein with silicon-based (silanol) groups attached, used to condition hair and skin. The protein comes from wheat; the silicon-containing group is synthetic.

CosIng definition: Protein hydrolyzates, wheat, reaction product with 1,2-propanediol, dihydroxymethylpropylsilyl ether

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