Sodium Lauryl Sulfoacetate vs. Sodium Laureth Sulfate
So, what’s the difference?
Sodium Lauryl Sulfoacetate is derived from coconut and palm oils; a safe, skin-friendly surfactant (foaming agent) for both skin and hair. This mild plant-derived surfactant creates a rich, luxurious lather that effectively removes surface oil, dirt and bacteria without stripping or drying sensitive skin.
Sodium Laureth Sulfate are synthetic cleansing agents that are small molecule ingredients. They are capable of penetrating the skin, which can increase the occurrence of skin irritation.
Although an ingredient’s name may sound similar to another, it does not mean that the molecules are similar with respect to shape, size, performance or even function. Sodium lauryl sulfoacetate sounds similar to Sodium laureth sulfate, however, the two molecules are quite different from each other.
Sodium lauryl sulfoacetate is a large molecule ingredient. Large molecule ingredients are considered to be mild, gentle, and non-irritating, as they cannot penetrate the skin. In contrast, sodium laureth sulfate is a small molecule ingredient, and is capable of penetrating the skin, which can increase the occurrence of skin irritation. (source: AvalonOrganics.com)