Dioleoylethyl Hydroxyethylmonium Methosulfate

TL;DR. This ingredient is a cationic conditioning agent used mainly in hair conditioners, masks, and leave-in products. It reduces static, improves wet combing, and leaves a softer feel by depositing a positively charged film on negatively charged hair fibers.

What does Dioleoylethyl Hydroxyethylmonium Methosulfate do in a cosmetic formula?

This ingredient is a cationic conditioning agent used mainly in hair conditioners, masks, and leave-in products. It reduces static, improves wet combing, and leaves a softer feel by depositing a positively charged film on negatively charged hair fibers.

Is Dioleoylethyl Hydroxyethylmonium Methosulfate clean?

Clean-beauty standards may treat it more favorably than older non-ester conditioning quats because it is designed to be more biodegradable. It still carries some scrutiny because cationic surfactants can irritate eyes or skin at higher levels and require careful formulation.

Is Dioleoylethyl Hydroxyethylmonium Methosulfate sustainable?

This material is typically based partly on fatty acid feedstocks, often from vegetable oils, plus synthetic quaternization chemistry. Its ester-linked structure improves biodegradability compared with more persistent silicone or traditional quat conditioners, but aquatic exposure still depends on concentration and wastewater handling.

Is Dioleoylethyl Hydroxyethylmonium Methosulfate COSMOS-approved?

It has partial alignment with COSMOS and Green Chemistry principles when the fatty portion is renewable and the finished material meets biodegradability and impurity criteria. Acceptance can be supplier-specific, so DARE would treat it as conditionally aligned rather than automatically COSMOS-organic or COSMOS-natural compliant.

How does Dioleoylethyl Hydroxyethylmonium Methosulfate work chemically?

The molecule is a positively charged, ester-linked lipid with two C18:1 fatty chains and a small sulfate counterion, which helps it bind to hair while remaining dispersible in conditioner systems. It is typically used in acidic rinse-off formulas, often around pH 3.5 to 5.5, where it pairs well with fatty alcohols and can lose performance if the emulsion system is too anionic.

Last updated 2026-05-13