Betaine is highly purified sugar beet extract and chemically speaking an amino acid derivative. It maintains skin moisture balance and strengthens the skin barrier even under very dry conditions. It is a natural osmoprotectant, an osmolyte, that protects cells from environmental stress like oxidative (UV radiation) and thermal stress (dehydration) by controlling cell water balance. 100% bio-based, betaine naturally occurs in plants and animals. The one we use in our Gel Cleanser is made from Finnish sugar beets.