Behentrimonium Methosulfate (Behentrimonium Methosulfate (and) Cetearyl Alcohol) is a Cationic conditioning emulsifier supplied by MakeYourSkin as a waxy pellets for professional cosmetic formulation. Used worldwide across mainstream cosmetic formulation, it is valued for hair conditioning, detangling, emulsification.

What is Behentrimonium Methosulfate?

Behentrimonium Methosulfate is supplied under the INCI / technical name Behentrimonium Methosulfate (and) Cetearyl Alcohol and carries CAS number 81646-13-1.

It belongs to the Cationic conditioning emulsifier group and is derived from rapeseed-derived. The material reaches you as a waxy pellets. It is an established cosmetic raw material with mature supply and well-understood formulation behaviour.

Key Properties & Benefits

• Hair conditioning
• Detangling
• Emulsification
• Reduces interfacial tension and stabilises the oil-water interface across the intended pH range.

Uses & Applications

Behentrimonium Methosulfate is used in conditioners, hair masks, leave-in treatments, styling products and colour-care systems.

Typical applications from the catalogue record: Conditioners, hair masks, leave-ins.

In hair care it is split between rinse-off systems, where substantivity decides how much survives the rinse, and leave-on scalp serums and tonics, where the full dose stays on the scalp.

How to Use — Recommended Use Level

General rule: always begin at the lower end of the range, confirm the level against the supplier technical data sheet, and validate stability, pH, colour, odour and preservative efficacy on the finished formulation before scaling up.

Technical Specification

Technical Notes

The gentlest of the common conditioning quats and the standard base for rinse-out conditioner.

Regulatory Note

Sold as a cosmetic raw material for professional formulation. A published INCI name does not by itself authorise use: the buyer is responsible for confirming permitted status, maximum concentration, restrictions by product type, labelling and claim rules in every market the finished product is sold in. In India, cosmetics fall under the Drugs and Cosmetics Act 1940 and the Cosmetics Rules 2020 administered by CDSCO, with BIS standards (including IS 4707 Part 2) listing restricted substances. The EU applies Regulation (EC) No 1223/2009 and its Annexes; the United States applies the FD&C Act as amended by MoCRA; Korea, Japan and China operate their own positive lists and functional-cosmetic frameworks. Every finished product needs its own safety assessment.

Reference: Regulatory / scientific reference

Documentation Supplied

• Certificate of Analysis (CoA) for the batch supplied
• Safety Data Sheet (SDS / MSDS) in the current GHS format
• Technical Data Sheet (TDS) with specification, solubility and handling guidance
• INCI declaration and, where assigned, CAS / EINECS numbers
• Non-GMO statement on request
• Vegan / animal-origin declaration on request
• Halal and Kosher certification on request where the supplier holds it
• Heavy-metal and microbiological test data on request

Available Pack Sizes

Supplied in 50 g, 225 g, 1 Kg and 5 Kg packs. Bulk quantities above 5 Kg, and drum or sack quantities, are available on request — contact the MakeYourSkin sales desk for a quotation and lead time.

Disclaimer & Caution in Use

For external cosmetic use in professionally formulated products only. This is a concentrated raw material, not a finished cosmetic, and it is not intended for undiluted application to skin, for ingestion, or for any medicinal purpose. Wear gloves and eye protection when handling, avoid raising dust with powders, and keep out of reach of children and pets. Always run a patch test on the finished formulation, and validate stability, compatibility, pH and preservative efficacy before sale. Information supplied is offered in good faith as formulation guidance and does not constitute a safety assessment, a regulatory approval or a medical claim.