Cetrimonium Chloride — Allergy Risk & Safety Profile
INCI: CETRIMONIUM CHLORIDE
Also known as: CTAC
Key Facts
- CAS Number
- 112-02-7
- Category
- surfactant
- Risk Level
- low
- Common Allergen
- No
- Found In
- conditioner, hair treatment
Is Cetrimonium Chloride safe in cosmetics?
Cetrimonium Chloride is rated low risk in cosmetic products. It is not classified as a common allergen and is generally well-tolerated by most skin types. Safer alternatives include Decyl Glucoside, Coco Glucoside, Sodium Cocoyl Isethionate. Commonly found in conditioner, hair treatment.
What is Cetrimonium Chloride?
Cetrimonium Chloride is a surfactant commonly used in cosmetic and personal care products. It is generally considered safe for use in cosmetics at recommended concentrations.
Allergy & Safety Information
Cetrimonium Chloride is considered safe for cosmetic use. No significant safety concerns have been identified at typical use concentrations. As with any cosmetic ingredient, discontinue use if irritation occurs.
This ingredient is considered low risk from an allergenicity perspective. Reactions are uncommon at typical cosmetic use concentrations. However, no ingredient is universally safe — if you notice redness, itching, or irritation after using a product containing this ingredient, discontinue use and monitor whether symptoms resolve.
About Surfactant / Cleansing Agent Ingredients
Surfactants reduce surface tension between water and oil, allowing products to cleanse, foam, and emulsify. They are essential in shampoos, cleansers, and body washes. However, surfactants vary widely in irritation potential — from harsh (sodium lauryl sulfate) to very mild (sodium lauroyl sarcosinate, decyl glucoside).
Relevance for Cetrimonium Chloride: Repeated daily use of strong surfactants disrupts the skin barrier by removing natural lipids, increasing sensitivity to other allergens over time. If you have reactive or eczema-prone skin, choosing low-irritation surfactants and limiting wash time reduces barrier damage.
How to Identify Cetrimonium Chloride in Products
Cosmetic ingredients are listed by their INCI (International Nomenclature of Cosmetic Ingredients) name in descending order of concentration. To check whether a product contains Cetrimonium Chloride, scan the ingredient list for its INCI name exactly as it appears above. Ingredients present at 1% or less may appear in any order after the 1% threshold.
Product types to prioritise checking: Conditioner, Hair treatment. These product categories are the most common sources of Cetrimonium Chloride exposure based on formulation data.
Not sure if your products contain Cetrimonium Chloride? Paste the ingredient list into the free ingredient checker to scan for Cetrimonium Chloride and other allergens automatically.
Safer Alternatives
These ingredients serve a similar function with lower allergy risk:
Frequently Asked Questions
Is Cetrimonium Chloride safe for sensitive skin?
Cetrimonium Chloride is generally well-tolerated, even by sensitive skin types.
What products contain Cetrimonium Chloride?
Cetrimonium Chloride is commonly found in conditioner, hair treatment.
What does Cetrimonium Chloride do in cosmetics?
Cetrimonium Chloride functions as a surfactant in formulations.
Related Guides
Sulfates in Skincare & Shampoo
Which surfactants damage the barrier and safer alternatives.
How to Read Ingredient Labels
Decode INCI names and find hidden allergens in your products.
Find Your Skin Allergy Trigger
Step-by-step elimination method to identify your trigger.
Contact Dermatitis Guide
Symptoms, causes, patch testing, and treatment options.
Is Cetrimonium Chloride causing YOUR skin reactions?
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