Silicone Quaternium-16 ●
TL;DR. This ingredient is a cationic conditioning polymer used mainly in hair care to reduce static, improve wet and dry combing, and leave a smooth, coated feel. It also helps deposit conditioning benefits from rinse-off formulas.
What does Silicone Quaternium-16 do in a cosmetic formula?
This ingredient is a cationic conditioning polymer used mainly in hair care to reduce static, improve wet and dry combing, and leave a smooth, coated feel. It also helps deposit conditioning benefits from rinse-off formulas.
Is Silicone Quaternium-16 clean?
From a clean-beauty perspective, it has friction because it is a synthetic, persistent film-forming polymer with cationic charge. It is not typically discussed as a major skin sensitizer, but it is often outside stricter clean-standard preferences for biodegradable conditioning systems.
Is Silicone Quaternium-16 sustainable?
This material is made through industrial silicon chemistry with synthetic organic side chains, rather than from a readily renewable feedstock. Its polymeric structure is not readily biodegradable, so rinse-off use raises persistence and wastewater-fate concerns.
Is Silicone Quaternium-16 COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic standards. Its synthetic origin, limited biodegradability, and persistent polymer profile are a weak fit with Green Chemistry principles.
How does Silicone Quaternium-16 work chemically?
The molecule is a high-molecular-weight cationic polymer built around a Si-O backbone with positively charged conditioning groups that bind well to negatively charged hair fibers. It is typically used at low levels in shampoos, conditioners, and styling products, and is commonly paired with surfactants or emulsifiers that help disperse and deposit it evenly.
Last updated 2026-05-13