BHAs (beta-hydroxy acids) are the oil-loving counterpart to AHAs. Because they dissolve in oil, they can travel into clogged pores and clear them from the inside — making them the go-to for blackheads, breakouts, and oily congestion. Salicylic acid is the BHA you'll see on nearly every product label.
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IngredientsB
BHA (Beta-Hydroxy Acid)
Definition
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.
Related Terms
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.
Salicylic Acid
A beta-hydroxy acid (BHA) that penetrates into pores to dissolve oil and dead skin buildup — especially effective for acne, blackheads, and congested skin.
AHA (Alpha-Hydroxy Acid)
A family of water-soluble acids — including glycolic, lactic, and mandelic — that dissolve the 'glue' holding dead skin cells together, smoothing texture and brightening tone.
Sebum
The natural oil produced by sebaceous glands in the skin that keeps it moisturized. Overproduction clogs pores and contributes to acne and shine.