How we scored it
Where it comes from
Made by reacting hydrolysed animal keratin (from wool, feathers or hair) with a petrochemical silane coupling agent to improve substantivity on hair. Exact substitution level isn't disclosed in available data, so the natural fraction is estimated.
In plain English
A hair- and skin-conditioning ingredient combining hydrolysed keratin protein with a silicone-like modifier for better adhesion to hair. The protein comes from animal sources; the modifier is synthetic.
Natural alternatives with the same function
Shikakai fruit powder, made by drying and grinding the seed pods of the Acacia concinna plant. Traditionally used…
Acronychia Acidula Fruit Extract 100% natural originAn extract of lemon aspen, an Australian native fruit, used to condition skin and hair and help hold…
Actinidia Chinensis Fruit 100% natural originMaterial from the kiwi fruit used to condition skin and hair, supplying fruit sugars, acids and vitamins. It…
Adansonia Digitata Seed Oil 100% natural originAn oil pressed from baobab tree seeds, used to nourish and condition skin and hair. It is harvested…
Adansonia Grandidieri Seed Oil 100% natural originA nourishing oil pressed from the seeds of the Madagascar baobab tree. It's used to condition skin and…
Agastache Rugosa Extract 100% natural originAn extract of the whole Korean mint plant (Agastache rugosa), made by soaking the plant in a solvent…
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.
- 2HYDROLYZED KERATIN PG-PROPYL METHYLSILANEDIOL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3HYDROLYZED KERATIN 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%20KERATIN%20PG-PROPYL%20METHYLSILANEDIOL