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Conditioning Agent

Behentrimonium Methosulfate

also on labels as BTMS · BTMS-25 · BTMS-50 · Docosyltrimethylammonium Methyl Sulfate

Rapeseed-derived quaternary conditioning agent and emulsifier (NOT a drying sulfate) that delivers superior wet detangling slip, static reduction, and cuticle smoothing.

slip/detanglerGood to knowHair typesFound in 5 products
Ingredients · as printedMiche Indulge Deep Conditioner

Distilled Water, Marshmallow Root, Slippery Elm Extract Infusion, Aloe Vera Leaf Juice, Behentrimonium Methosulfate, Cetearyl Alcohol, Orbignya Oleifera (Babassu) Seed Oil, Olea Europaea (Olive) Fruit Oil, Ricinus Communis (Castor) Oil, Shea Butter, Propanediol, Glycerin, Raw Organic Honey, Phthalate-Free Fragrance, Phenoxyethanol, Caprylyl Glycol, Sorbic Acid, Caesalpinia Spinosa Gum.

Behentrimonium Methosulfate is 5th, 5th of 18.Dotted words have their own page.
Good to know

Despite "methosulfate" in its name, it is a mild, non-stripping conditioning agent; very low buildup risk.

Hair types

Notes for different hair

All porosities—gold-standard detangling active for tight coils (3C–4C).

General patterns from our research, not rules. Hair of the same type can respond differently, so your own results count most.
Found in these products

On 5 of the 34 labels we've read

Labels list ingredients from most to least, down to about 1%. Below that, the order is free.

Cleanse 0 · Condition 3 · Leave-in 2 · Style 0 · Seal 0

  1. 5of 18
  2. 5of 13
  3. 6of 31
  4. 6of 9
  5. 31of 40

These are labels we've read by hand from brand sites and packaging, not a list of recommendations. We add more as we go.

Also slip/detangler

Other ingredients like it

Source: The Good Coil research · Ref ING-055Get this as data (JSON)How we write these