The Environ B-active range is a 5 step skin care program formulated for consumers who have problem skins. We recommend that the B-active range be used in conjunction with the vitamin A moisturizers in the AVST range. Most of the products in this range contain a combination of Australian Tea Tree Oil, colostrum and salicylic acid. Warning: Consumers allergic to salicylic acid (aspirin), a Beta Hydroxy Acid may only use sebugel A and sebuspot in this range.