Silicone Quaternium-3 ●
TL;DR. It is a cationic conditioning polymer used mainly in hair care to improve wet combing, reduce static, add slip, and leave a light film on hair fibers.
What does Silicone Quaternium-3 do in a cosmetic formula?
It is a cationic conditioning polymer used mainly in hair care to improve wet combing, reduce static, add slip, and leave a light film on hair fibers.
Is Silicone Quaternium-3 clean?
From a clean-beauty perspective, this ingredient has friction because it combines a persistent silicon-containing polymeric backbone with permanently charged conditioning groups, a profile many stricter standards do not favor. Skin irritation is generally not the main issue at use levels, but buildup, rinse-off discharge, and restricted-list alignment drive the concern.
Is Silicone Quaternium-3 sustainable?
It is generally synthetic and derived from mineral or petrochemical feedstocks rather than renewable raw materials. The polymeric backbone is not readily biodegradable, so rinse-off use raises persistence and wastewater concerns.
Is Silicone Quaternium-3 COSMOS-approved?
It is not aligned with COSMOS-natural or COSMOS-organic because synthetic silicon-containing conditioning polymers are outside the standard’s usual permitted raw-material set. Its Green Chemistry fit is weak due to nonrenewable feedstocks, limited biodegradability, and end-of-life persistence despite efficient performance at low dose.
How does Silicone Quaternium-3 work chemically?
The molecule is a high-molecular-weight polymer with a hydrophobic backbone containing silicon and oxygen atoms plus cationic quaternary ammonium sites that adsorb strongly to negatively charged hair keratin. It is broadly stable across typical cosmetic pH and is often paired with surfactants or emulsifiers to control deposition, clarity, and sensory feel.
Last updated 2026-05-13