/sal-ih-SIL-ik/
Definition
A beta-hydroxy acid (BHA) that penetrates into pores to dissolve oil and dead skin buildup — especially effective for acne, blackheads, and congested skin.
Salicylic acid is unique among exfoliating acids because it's oil-soluble — meaning it can travel down into oily pores and clear them from the inside out. That's why it shows up in nearly every acne product on the market, from drugstore cleansers to professional chemical peels.
Chemical Peel
A skin treatment that uses controlled acid solutions to remove damaged outer layers, revealing smoother, more even skin underneath.
Exfoliation
The process of removing dead skin cells from the skin's surface, either physically (scrubs, devices) or chemically (acids, enzymes) to reveal fresher skin.
BHA (Beta-Hydroxy Acid)
A family of oil-soluble acids — most notably salicylic acid — that penetrate into pores to break down excess sebum and dead skin. Ideal for oily, acne-prone skin.
Sebum
The natural oil produced by sebaceous glands in the skin that keeps it moisturized. Overproduction clogs pores and contributes to acne and shine.