Check Explore Routine Community Pricing

Loading...

Skincare that makes sense. See what's really in your products — in plain English.

Product

Quick Check
Explore
Routine
Track
Community
Pricing

Company

About
Submit a product
Contact

Legal

Privacy
Terms

© 2026 Dermasift. All rights reserved.

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

DDAC

1% line markerAI-analyzed

INCI: DIDECYLDIMONIUM CHLORIDE

PreservativeAntimicrobialAntistatic agent

What it does

A quaternary ammonium compound used primarily as a preservative and antimicrobial agent to prevent the growth of microorganisms in cosmetic products.

Skin Concerns

May aggravate

sensitivity

Safety & Science

Safety summary

Effective at low concentrations, but its use is restricted in some regions due to potential for irritation and environmental concerns.

CAS Number

7173-51-5

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: DIDECYLDIMONIUM CHLORIDE
Common Name: DDAC
Functions: Preservative, Antimicrobial, Antistatic agent
Products: 9 products
CAS Number: 7173-51-5

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

DDAC — Skincare Ingredient Guide — Dermasift — Dermasift