Is C11-15 Pareth-30 natural? NOI 0.00

Q: Is C11-15 Pareth-30 natural?

C11-15 Pareth-30 has a Natural Origin Index (NOI) of 0.00 (scale 0–1) per ISO 16128. An ethoxylate of a synthetic odd-and-even-carbon alcohol blend; both the alcohol and the ethylene-oxide chain come from petrochemicals. An NOI of 0.00 means 0% of its molecular mass is traceable to a natural, renewable source.

How we scored it

C11-15 Pareth-30: the C11-15 alcohol blend is made by oxo or Ziegler synthesis from petrochemical olefins, and the 30 ethylene-oxide units are petrochemical → 0.00. Same treatment as the site's C12-15 and C12-13 pareths.

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

Oxo-process C11-15 alcohols ethoxylated with about 30 mol of ethylene oxide.

In plain English

A fatty alcohol extended with a substantial amount of petrochemical ethylene oxide to make it more water-soluble. Used as a cleansing and emulsifying ingredient in personal care products.

CosIng definition: Alcohols, C11-15, ethoxylated (30 mol EO average molar ratio)

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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.
2C11-15 PARETH-30. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
3C11-15 PARETH-30. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=C11-15%20PARETH-30