Trideceth-12
try-DESS-eth TWELVE
What Is Trideceth-12?
A PEG-based non-ionic emulsifier and solubilizer used in shampoos and conditioners. It helps oil-soluble ingredients mix uniformly into water-based formulations.
Source: Tridecyl alcohol with ethylene oxide
Origin: Synthetic
Also known as: PEG-12 Tridecyl Ether
What Does Trideceth-12 Do to Your Hair?
Acts as an emulsifier and solubilizer that helps incorporate oil-soluble ingredients into water-based hair products. Contributes to product stability and uniform ingredient distribution.
Best For
All hair types (functional ingredient)
Not Recommended For
Sensitive scalp (PEG sensitivity)
Concentration Matters
0.5-3% in products
Hair Type Compatibility
Method Compatibility
Safety & Regulation
Standard PEG-compound safety profile. Potential 1,4-dioxane contamination concern managed through manufacturing purification. Generally safe at standard cosmetic concentrations.
FDA Status: Generally Recognized As Safe
FDA permits use in cosmetics. Standard PEG purification guidelines apply.
EWG Score: 3/10
HairAide Verdict
A standard PEG emulsifier with no unique properties or concerns beyond those common to all PEG compounds. Purely functional.
Products That Contain Trideceth-12
Shampoos, conditioners, hair treatments
Alternatives to Trideceth-12
If you want to avoid Trideceth-12, look for products with these ingredients instead:
Ceteareth-20, Polysorbate 80, Laureth-23
Frequently Asked Questions
Yes, Trideceth-12 has a safety rating of 7/10 and is generally considered safe for use in hair products. Standard PEG-compound safety profile. Potential 1,4-dioxane contamination concern managed through manufacturing purification. Generally safe at standard cosmetic concentrations.
Trideceth-12 is not CG-method approved. Curly hair types may want to avoid this ingredient or use products containing it sparingly.
No, Trideceth-12 is not approved for the Curly Girl method.
Some alternatives to Trideceth-12 include: Ceteareth-20, Polysorbate 80, Laureth-23
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