BHAAntimicrobialKeratolyticSebum RegulatorAnti-inflammatory
Salicylic Acid
Tier 1 Evidence
what it does
A beta-hydroxy acid (BHA) derived from willow bark that exfoliates inside pores by dissolving oil-based debris. Clinically proven for acne, blackheads, and improving skin texture.
If your pores are basically little trash cans, salicylic acid is the vacuum. It's oil-soluble so it actually goes IN the pore — not just sits on top feeling smug. Non-negotiable for acne-prone types.
targets these concerns
don't combine with
Tretinoinmedium
Both are potent exfoliants. Combining tretinoin with salicylic acid can cause excessive irritation and barrier disruption.
💡 AM: salicylic acid. PM: tretinoin only.
Retinolmedium
Salicylic acid lowers skin pH, destabilising retinol and increasing irritation. Keep them in separate sessions.
💡 AM: salicylic acid. PM: retinol.