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© 2026 Dermasift. All rights reserved.

For informational purposes only — not medical advice. Always consult a dermatologist for skin concerns.

QUATERNIUM-51

1% line markerAI-analyzed

antistatichair conditioning

What it does

A quaternary ammonium compound that functions as an antistatic and hair conditioning agent, improving the feel and appearance of hair.

Skin Concerns

May aggravate

sensitivity

Safety & Science

Safety summary

Generally considered safe for cosmetic use, but like other quaternary ammonium compounds, it can be a potential sensitizer for some individuals.

CAS Number

1463-95-2

1% line marker

This ingredient is commonly used as a marker to identify where ingredients drop below 1% concentration on the label.

Found In Products

Related Ingredients

At a Glance

INCI Name: QUATERNIUM-51
Functions: antistatic, hair conditioning
Products: 4 products
CAS Number: 1463-95-2

For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.

QUATERNIUM-51 — Skincare Ingredient Guide — Dermasift — Dermasift