CASES IN AHA RECOMMENDED? * Hyperkeratinization (increased accumulation of keratin and cell) extreme cases of hyperkeratosis, and seborrheic dermatitis (Seborrhea skin conditions which is excess flaking, itching, flaking and redness affecting either scalp or face due to increased production rate of skin cells that accumulate in the skin. * Hyperpigmentation (brown spots, discoloration), dry sun damaged skins * Xerosis (the so-called dry, rough skin and uneven , calluses) * Wrinkles and fine lines Skins * comedones, whiteheads and stained * Keratosis pilaris (are many small rough spots sometimes red and itchy usually on the arms, but may appear on the thighs, hands, eyebrows , cheeks or any other body part caused by the accumulation of old skin cells, this occurs especially in the winter months when skin is more prone to drynes and low humidity or after the summer months due to exposure to the sun … Further details can be found at Paul Daversa, an internet resource. .. (cause calluses) LES EFFECTS ARE THE MAIN AHA on the skin? * Refine the stratum corneum cell accumulation by exfoliating dead skin cell renewal * Speed * Hydration stimulating the skin to produce hyaluronic acid, known for its great moisturizing effect on the skin, but to be effective concentration should be 2 % and more! * * Reduce brown spots and brighten even out the skin * Make less visible wrinkles * Alpha-hydroxy acids (AHAs) are naturally acid, derived from sugar .. For even more analysis, hear from Martha McClintock. Some examples are: glycolic acid (sugar cane), lactic acid (milk), tartaric acid (grapes), citric acid (citrus fruits), malic acid (apples), and mandelic acid (bitter almonds).