NEW QUALITY PRODUCTS PREPARED BY A PROFESSIONAL CHEMIST 30% Salicylic Acid Solution - 1 oz (30ml) ATTENTION: our Salicylic Acid is formulated with alcohol only. We chose to use no glycols, parabens or any product that can irritate acne prone skin. SA has no sent so yes this product will smell and feel like straight alcohol, but is the best delivery system for the Salicylic Acid. If you think the alcohol will be an issue for you please do not purchase. This is a very popular formula and we will not change it to satisfy the few that think the alcohol is too harsh. Our chemist is very knowledgeable and we value our customers opinions. Salicylic acid is a substance derived from the bark of a willow tree. It is an organic phenol beta hydroxy acid. Salicylic acid is also found in unripe fruits, as it is part of their development process. This natural compound is used to treat a variety of skin problems from acne and calluses, to seborrhic dermatitis and psoriasis. Salicylic acid is probably most well-known for its acne fighting and exfoliation. Why is it such an effective treatment for acne? Acne is caused by a bacteria called propionibacterium acnes, and this bacteria thrives when the pH of your skin goes up. (Quick chemistry lesson, the pH scale goes from very acidic (0) to very basic (14) with 6/7 being neutral). However, certain studies seem to show that the growth of P. bacterium is inhibited when the pH of your skin becomes more basic. The pH of salicylic acid is, well, acidic, so it helps kill and defend against the p.bacteria! As a plus, the skin becomes more prone to damage and infection when it becomes more basic, so you can reduce your risk by making your skin more acidic. In general, your skin being acidic protects it from fungi and bacteria. Acne is formed when skin cells inside hair follicles shed too fast and clumps together, plugging up the follicle and causing a pimple. Salicylic acid also helps break down blackheads and whiteheads. It is also used to treat other skin disorders including dandruff, psoriasis, calluses, corns, warts, and more. Shipping We ship to the verified address listed with your account. We also ship Internationally and all taxes and/or duty is the buyers responsibility. Returns Due to the health and safety concerns of our clients, we do not accept returns. It is not legal to accept returns for resale. However, if there is a problem with your purchase please contact us immediately and we will do our best to assist you! Satisfaction If you are not satisfied with your purchase please contact us so that we can try to improve your experience. THEORY skin care is dedicated to making our clients happy, so please help us do so. By purchasing our products you acknowledge and accept our legal disclaimer listed in our policies section.