Is Aluminum Chlorohydrex PEG natural? NOI 0.85

Q: Is Aluminum Chlorohydrex PEG natural?

Aluminum Chlorohydrex PEG has a Natural Origin Index (NOI) of 0.85 (scale 0–1) per ISO 16128. Aluminum, chloride and hydroxide are mineral/natural; the PEG (ethylene oxide) portion grafted on is petrochemical. An NOI of 0.85 means 85% of its molecular mass is traceable to a natural, renewable source.

How we scored it

Est. ~85% mass mineral Al2Cl(OH)5 core (natural) + ~15% mass PEG chain (petrochemical); no formula/MW given so ratio approximated from typical commercial reaction-product composition.

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 reacting aluminum chlorohydrate (from bauxite-derived aluminum and mined/brine chloride) with polyethylene glycol, a petrochemical ethylene-oxide polymer that modifies solubility. Exact PEG content varies by supplier.

In plain English

An antiperspirant salt that forms a gel in sweat ducts to reduce underarm wetness. It combines aluminum and chloride (mineral) with polyethylene glycol (PEG), a petroleum-derived processing aid that improves solubility and reduces fabric staining.

CosIng definition: Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, reaction products with aluminium chloride hydroxide (Al2Cl(OH)5)

Natural alternatives with the same function

Aluminum Bromohydrate 100% natural origin

An antiperspirant and astringent mineral salt of aluminum and bromine, chemically similar to the more common aluminum chlorohydrate.…

Aluminum Chloride 100% natural origin

A mineral salt used in antiperspirants and deodorants to reduce sweat and odor, and as an astringent. It's…

Aluminum Chlorohydrate 100% natural origin

A mineral aluminium salt used in antiperspirants to reduce underarm wetness by temporarily blocking sweat ducts; refined from…

Aluminum Dichlorohydrate 100% natural origin

The active ingredient in many antiperspirants, reducing underarm wetness. It's a simple mineral salt of aluminum, chloride and…

Aluminum Sesquichlorohydrate 100% natural origin

An antiperspirant and astringent ingredient that reduces underarm wetness. Made by reacting mined aluminium mineral with chloride to…

Aluminum Sulfate 100% natural origin

A mineral salt used as an astringent and deodorant/antiperspirant ingredient that helps reduce sweating and body odour.

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