Behentrimonium Methosulfate is a quaternary ammonium compound derived from rapeseed or colza oil, primarily used in hair conditioners and creams to detangle, soften, and emulsify. It is considered a mild, low-irritation conditioning surfactant.
| Reported effect | How often | Notes |
|---|---|---|
Mild skin or scalp irritation | Uncommon | Possible with high concentrations or prolonged contact, generally minor. |
Allergic contact dermatitis | Rare | Sensitization to quaternary ammonium compounds reported infrequently. |
Eye irritation | Uncommon | Can cause stinging or redness on direct ocular contact. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.