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Isoceteth-20

What Isoceteth-20 is & what it does

Isoceteth-20 is an ethoxylated fatty alcohol, made by reacting isocetyl alcohol with about 20 units of ethylene oxide. In cosmetic and sunscreen formulas it works as a nonionic surfactant and emulsifier, helping oil and water phases mix into a stable cream or lotion. It also aids in solubilizing oils and fragrances into water-based products.

Is Isoceteth-20 safe?

Isoceteth-20 is a nonionic surfactant and emulsifier widely used in cosmetics and is generally regarded as safe at the levels found in skincare and sunscreen products. It helps oil and water phases stay blended. People with very sensitive skin can patch test, as surfactants can occasionally cause mild irritation.

What does Isoceteth-20 do in skincare?

Isoceteth-20 works as an emulsifier and surfactant, helping oil and water mix into a stable cream or lotion. It also helps dissolve oils and fragrances into water-based formulas. This keeps the product uniform and pleasant to apply.

Is Isoceteth-20 natural or synthetic?

Isoceteth-20 is synthetic. It is made by reacting a fatty alcohol with ethylene oxide in a controlled process. The fatty alcohol base may be plant-derived or synthetic depending on the supplier, and it is commonly used in vegan formulas.

Sunscreens with Isoceteth-20

We rate 15 sunscreens that contain it, showing the top 10 by overall score:

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