Trideceth-9
A non-ionic emulsifier and co-surfactant. It stabilizes the formula and helps blend phases. Well tolerated.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Trideceth-9 is a non-ionic emulsifier that also acts as a co-surfactant. Its INCI name is Trideceth-9. In a formula it helps bind the oil and water phases, stabilizes the blend, and improves the solubilization of other ingredients. This is a functional ingredient, not a skincare active. It does not treat the skin; it gives the formula structure and stability. In that role it does its job well and is used to keep the product uniform. Applied topically it has no systemic relevance, so it can be used during pregnancy and breastfeeding. As a surfactant it is mild. Its irritation and allergy potential is low and it suits sensitive skin. By its surfactant nature it could dry slightly at high concentrations, but at usual levels it tolerates well and most people see no reaction.
Frequently asked questions
Is Trideceth-9 safe during pregnancy?
Trideceth-9 is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Trideceth-9 for?
Trideceth-9 suits: normal, dry, combination, oily, sensitive.
What is Trideceth-9 and what does it do in cosmetics?
A non-ionic emulsifier and co-surfactant.
What's the INCI name for Trideceth-9?
The INCI name is Trideceth-9.
See Trideceth-9 in a product composition right on the store page
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Similar role in the formula
Other functional ingredients
Triethanolamine, Triethoxycaprylylsilane, Triethyl Citrate, Triethylhexanoin, Ceteareth-23, Hexadecanolactone, PEG-200 Hydrogenated Glyceryl Palmate, Raspberry Ketone
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