The difference between glycolic acid and fruit acid (AHA) and salicylic acid (BHA)
fruit acid (AHA) is a general term for a variety of organic acids extracted from fruits or milk. Its family is huge, and glycolic acid is one of the leaders. Glycolic acid, with the smallest molecule and good penetration, can quickly reach the deep layers of the skin and exert multiple skin beauty effects.

Glycolic acid is used at the skin rejuvenation level to loosen the connections between keratinocytes, causing the old waste keratin to fall off, and the skin is smooth and delicate. Although other members of fruit acid (AHA), such as lactic acid, malic acid, etc., also have this ability, the effect may be slow or fast due to different molecular sizes and structures.

Salicylic acid (BHA), also known as beta-hydroxy acid. It is different from glycolic acid and fruit acid (AHA). Glycolic acid has strong hydrophilicity, while salicylic acid has lipophilic properties and can penetrate deep into the pores rich in oil. In terms of oil control and improving acne skin, salicylic acid has significant effects. Although glycolic acid is also beneficial to skin metabolism, salicylic acid has obvious advantages in areas with strong oil secretion.

Glycolic acid is highly irritating to the skin if used improperly due to its small molecule. Fruit acid (AHA) is generally milder, but at different concentrations, the degree of irritation varies. Although salicylic acid has good lipophilic properties, it is also prone to skin discomfort when it is in high concentrations.

When using glycolic acid, fruit acid (AHA) and salicylic acid, choose carefully according to your skin type. For dry and sensitive skin, low-concentration glycolic acid or mild fruit acid (AHA) should be the starting point; for oily, acne skin, salicylic acid may be the top choice. And you need to pay attention to the frequency and method of use to keep your skin healthy and get the best skin beauty.