Which ingredient is well-known for its exfoliating properties?

Alpha hydroxy acids (AHAs) are well-known for their exfoliating properties due to their ability to dissolve the bonds that hold dead skin cells together on the surface of the skin. This action helps to promote cell turnover, resulting in a smoother and more radiant complexion. AHAs, which include common ingredients like glycolic acid and lactic acid, are water-soluble and primarily derived from fruits and milk. They are effective in addressing various skin concerns, such as hyperpigmentation, uneven texture, and fine lines, making them a popular choice in both professional and at-home skin care regimens.

While glycolic acid, one of the specific types of AHAs, is also known for its exfoliating effects, classifying the entire category of AHAs encompasses a broader range of exfoliating ingredients. Salicylic acid, though effective for exfoliation, is primarily known for its ability to penetrate and clean out pores, making it particularly useful for acne-prone skin rather than serving as a general exfoliant. Retinol is a form of vitamin A that promotes cell turnover and improves skin texture, but it works in a different manner than AHAs and is typically regarded more for its anti-aging benefits rather than its direct exfoliation properties.