Biphasic serum containing a blend of AHA, BHA and PHA to help remove dead skin cells and regulate sebum production. Suitable for: Normal skin, oily skin, combination skin. Sebum is an oily substance that lubricates hair and skin and sometimes gets caked together with unremoved dead skin cells, clogging pores and hair follicles. That process creates acne and pimples on the skin, irritates it and makes it problematic. The treatment of this problem should be systematic and persistent, which will help with existing pimples and spots and control future outbreaks. It combines active ingredients that help cleanse, treat blemishes, regulate sebum production and keep skin healthy and smooth. The Multiphase Facial Serum contains a blend of AHA, BHA and PHA that helps remove dead skin cells, regulate sebum production, giving the skin a smooth and matte appearance. In combination with Tea Tree in the formula, it has soothing properties and is beneficial for improving the appearance of enlarged pores. Centella Asiatica helps strengthen the protective barrier and prevent excessive moisture loss, keeping the skin hydrated. Niacinamide helps to smooth the skin and improve its overall texture. We are constantly improving our formulas, so there may be differences in the ingredient lists on the website and packaging depending on the time and region of purchase. Please check the ingredient list on the packaging. How to use it: Shake the product to mix the two phases. Apply a small amount to clean, dry skin on the face, avoiding the eye area. Gently pat until completely absorbed. Before first application, it is recommended to perform a sensitivity test.