Dermacryl® 79 polymer is a hydrophobic, high molecular weight carboxylated acrylic copolymer. Because the polymer is inherently moisture resistant, Dermacryl® 79 polymer can be used in waterproof sunscreens as well as a variety of creams and lotions. The Polymer's film formation properties help maintain active ingredients on the site of application by imparting resistance to abrasion or rub-off.