Ingredient
Salicylic Acid (BHA)
Still central to acne, pore care and increasingly scalp exfoliation.
Category: Exfoliant
Chemical formula: C7H6O3
Main cosmetic effects: Oil-soluble exfoliation; pore/scalp care; oil-control support.
Source: Industrial synthesis; historically associated with willow bark.
Developer / supplier: Longstanding dermatology/cosmetic research
Origin: Global
Representative product: Paula's Choice Skin Perfecting 2% BHA
Approx. retail price (USD): 35
Evidence maturity: Strong evidence
What it does
Oil-soluble exfoliation; pore/scalp care; oil-control support.
Notes
Exfoliant | Strong evidence