Database/Antistatic/Brassicyl Isoleucinate Esylate
Mostly natural · ISO 16128

Is Brassicyl Isoleucinate Esylate natural?

Mostly. Rapeseed-derived fatty alcohol esterified with fermentation-derived isoleucine; the ethanesulfonate (esylate) counter-ion is petrochemical.

INCI nameBrassicyl Isoleucinate Esylate
FunctionAntistatic · Emulsion Stabilising
FeedstockA rapeseed (Brassica) fatty alcohol is esterified with…

How we scored it

Fatty ester of isoleucine from rapeseed alcohol (natural, ~439 Da) + ethanesulfonate counter-ion (petrochemical, ~110 Da). 439/549 = 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

A rapeseed (Brassica) fatty alcohol is esterified with the amino acid isoleucine and paired as an ethanesulfonate salt. Structure and exact MW estimated from typical bio-based cationic conditioners of this type.

In plain English

A plant-based hair conditioning ingredient made from rapeseed oil and the amino acid isoleucine. It replaces older silicone-type conditioners with a more renewable alternative.

CosIng definition: Brassicyl Isoleucinate Esylate is the substituted amino acid

Natural alternatives with the same function

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