Stearalkonium Chloride ●
TL;DR. This ingredient is a cationic surfactant and conditioning agent, mainly used to reduce static, improve combing, and leave hair feeling smoother in conditioners and some styling products.
What does Stearalkonium Chloride do in a cosmetic formula?
This ingredient is a cationic surfactant and conditioning agent, mainly used to reduce static, improve combing, and leave hair feeling smoother in conditioners and some styling products.
Is Stearalkonium Chloride clean?
From a clean-beauty perspective, it has friction because many standards scrutinize cationic conditioning agents for irritation potential and aquatic impact. It is often treated as a restricted-list ingredient rather than a broadly accepted clean standard-bearer.
Is Stearalkonium Chloride sustainable?
This material is typically made from fatty-chain feedstocks combined with petrochemical-derived inputs, so sourcing can vary between plant, animal, and synthetic origins. It is not a strong fit for low-impact formulas because cationic surfactants can bind to sludge and sediments and biodegrade less readily than many simple plant-derived emollients or humectants.
Is Stearalkonium Chloride COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic standards for standard cosmetic use. Its fit with Green Chemistry is weak because of its synthetic cationic structure, aquatic-impact profile, and limited alignment with readily biodegradable, renewable, low-residue design principles.
How does Stearalkonium Chloride work chemically?
The molecule is a permanently charged cationic amphiphile with a C18 hydrophobic tail, which helps it adsorb strongly to negatively charged hair keratin. It is typically used at low levels in rinse-off conditioning systems, often around 0.1 to 2% active, and it is generally incompatible with anionic surfactants or anionic polymers because they can form insoluble complexes.
Last updated 2026-05-13