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SILICONE QUATERNIUM-17.

Valuable CAS 519142-86-0 / HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

SILICONE QUATERNIUM-17 is a polyquaternary organosilicone engineered to enhance skin feel and moisture. It acts as an emollient and slip aid, forming a breathable, protective film that improves the skin's moisture balance and imparts a smooth sensation.

Emollient Slip Aid Moisturizing Agent Film Former Surfactant

Science

This polyquaternary organosilicone is highly substantive, meaning it adheres effectively to the skin. It functions as a surfactant by reducing surface tension and creating a vapor-permeable protective film. This film enhances the skin's moisture balance, provides emollient benefits, and improves product glide for a distinctly smooth skin feel.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 5 – 7
0 7 14

Stability

SILICONE QUATERNIUM-17 is stable but susceptible to oxidation. It is a low viscosity, pourable liquid, fully soluble in water, and cold processable. It can be incorporated into formulations at the final stage with gentle mixing.


Safety

CIR Status
Not reviewed
Sensitization risk Low

While the Cosmetic Ingredient Review (CIR) has not specifically reviewed SILICONE QUATERNIUM-17, silicones generally exhibit low comedogenicity and are well-tolerated on the skin. This ingredient is listed as 'Irritant Free' on SkinSAFE. However, in its concentrated liquid form, it may induce irritation to the skin, eyes, and respiratory system. It is not currently present on EWG's Skin Deep Restricted or Unacceptable Lists, supporting its general safety profile in cosmetic applications.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

This ingredient is valuable for enhancing sensory attributes and supporting skin hydration across all skin types due to its emollient, film-forming, and slip-improving properties, with a low risk of irritation or comedogenicity.


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