Isoceteth-20 Good Cleansing Agent No known benefits Isoceteth-20 at a glance Mild surfactant, noted for its ability to gently cleanse with minimal disruption to skin’s barrier Exhibits excellent foaming properties Can also be used to solubilize perfumes or other ingredients in water Deemed safe in up to 21% concentration by the Cosmetic Ingredient Review Expert Panel Isoceteth-20 description Isoceteth-20 is described as a mild non-ionic surfactant, which is noted for its ability to gently cleanse with minimal disruption to skin’s barrier. Manufacturers of this synthetic ingredient also tout its superior foaming properties. Isoceteth-20 can also be used to solubilize perfumes or other ingredients into water. The 2012 Cosmetic Ingredient Review assessment of isoceteth-20 concluded that it is safe. Their report surveyed personal care formulations containing up to 21% of this ingredient.