Is Isostearyl Isostearate natural? NOI 1.00

Q: Is Isostearyl Isostearate natural?

Isostearyl Isostearate has a Natural Origin Index (NOI) of 1.00 (scale 0–1) per ISO 16128. Both halves derive from oleic-acid-based branched fatty chemistry; no petrochemical fragment enters the ester. An NOI of 1.00 means 100% of its molecular mass is traceable to a natural, renewable source.

How we scored it

Ester of isostearyl alcohol (C18 branched, natural) + isostearic acid (C18 branched, natural); both oleochemical → 1.00.

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

Made by esterifying natural branched isostearyl alcohol with natural branched isostearic acid, both derived from vegetable oleic acid. No petrochemical route is used commercially.

In plain English

A rich, silky emollient that conditions skin without feeling heavy. Both parts of the molecule are made from natural vegetable oil fatty acids.

Structure

16-methylheptadecyl 16-methylheptadecanoate

PubChem CID 162048 ↗

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.
2Isostearyl Isostearate. PubChem CID 162048. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
3ISOSTEARYL ISOSTEARATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
4ISOSTEARYL ISOSTEARATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ISOSTEARYL%20ISOSTEARATE