Buteth-3
What Buteth-3 is & what it does
Buteth-3 is an ethoxylated butyl alcohol, a synthetic ingredient that acts as a surfactant and solubilizer in cosmetic formulas. Its main job is to help blend oils, fragrances, and other poorly water-soluble materials into water-based products and to support cleansing. The number 3 refers to the degree of ethoxylation, which influences its solubilizing strength. It is commonly used in cleansers, toners, and lightweight emulsions as a formulation aid rather than a skin active.
What is Buteth-3?
Buteth-3 is an ethoxylated butyl alcohol, a synthetic ingredient that acts as a surfactant and solubilizer. The number refers to its degree of ethoxylation.
What does Buteth-3 do in a formula?
It helps blend oils, fragrances, and other poorly water-soluble materials into water-based products and can support cleansing. It is a formulation aid rather than a skin active.
Is Buteth-3 safe?
It is generally considered safe for use in cosmetics as a solubilizer at typical levels. It functions mainly behind the scenes to keep formulas stable and clear.
Sunscreens with Buteth-3
We rate 4 sunscreens that contain it:
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Natasha by Dr. Fredi Setyawan Sunscreen Cream SPF 50+ Pa++++
62/100
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Teratu Beauty Daily UV Sunscreen SPF 50 Pa++++ Matte Finish
61/100
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Bali Breeze Tropical Sunscreen SPF 50+ PA++++
61/100
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Bali Breeze Tropical Sunscreen Sport Spf 50+ Pa++++
52/100