Ceteareth-33
An emulsifier and co-surfactant. It blends oil with water and stabilizes the formula. 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
Ceteareth-33 is a nonionic surfactant, an ethoxylated cetearyl alcohol. INCI: Ceteareth-33. In a formula it works as an emulsifier and stabilizer: it binds oil and water, helps keep the emulsion uniform, and improves cream texture. It is a functional component, not a skincare active. It is used in creams and emulsions. Pregnancy safety. Systemic absorption through intact skin is low and there is no evidence of harm. It can be used during pregnancy and lactation. Tolerance. Irritation and allergen potential are low. As with ethoxylated raw materials, the standard caveat about 1,4-dioxane removal in manufacturing applies.
Frequently asked questions
Is Ceteareth-33 safe during pregnancy?
Ceteareth-33 is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Ceteareth-33 for?
Ceteareth-33 suits: normal, dry, combination, oily, sensitive.
What is Ceteareth-33 and what does it do in cosmetics?
An emulsifier and co-surfactant.
What's the INCI name for Ceteareth-33?
The INCI name is Ceteareth-33.
See Ceteareth-33 in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Similar role in the formula
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