Alpha-hydroxy acid (AHA) is one of the most important ingredients to fight wrinkles and it was used as a beauty product since ancient times. It can be found in different forms: glycolic acid, citric acid, lactic acid, tartaric acid, malic acid, and acid derivatives of fruits. The AHA is an exfoliant that penetrates your skin, dissolving the dead cells and allowing new ones to surface. The cosmetic products containing AHA purify pores, reduce fine lines, improve the condition of the epidermis and are therefore ideal for normal to dry skin because this acid exfoliates only the surface and does not penetrate too deeply, unlike BHA (beta-hydroxy acid). AHA simply melts in water while BHA is an oil-soluble ingredient (sebum). For this reason, BHA can penetrate pores that contain sebum and can exfoliate dead skin cells inside the follicle. Therefore, we recommend AHA products for people with sun-damaged skin or with wrinkles and BHA products for people with oily, acne-prone skin. Retinol This ingredient is in many cosmetic products and it is used in the treatment of wrinkles, age spots, acne and other skin problems. Retinol-based cosmetics help to prevent moisture loss and maintain the natural elasticity of the skin, thus preventing the appearance of wrinkles and fine lines. They also prevent free radicals, which are responsible for skin aging and its antioxidant properties help to maintain the skin’s beauty and health. Vitamin C Vitamin C is an important ingredient for your skin and it plays an essential role in maintaining a healthy and strong skin. Young skin is rich in Vitamin C but, over time, this substance is lost. Exposure to UV rays, pollution and cigarette-smoking contribute to a decrease in the amount Vitamin C in the skin and the appearance of the signs of aging. The production of collagen, a specific protein which gives the skin more elasticity, is one of the more useful effects of Vitamin C. However, with age, collagen formation is more difficult, leading to the appearance of wrinkles and therefore this ingredient is great in anti-wrinkle creams. Vitamin E Vitamin E is great to fight skin aging and reduce wrinkles as this active antioxidant leaves the skin moisturized and protected. Niacinamide Niacin or Vitamin B3 has recently been discovered to have beneficial effects. Niacin has two forms that can be used as ingredients in cosmeceuticals: niacinamide and nicotinic acid, but it is not yet clear whether these are interchangeable with each other.