01.
Concentration guide
0.5-2% for daily use.
2% is the maximum over-the-counter concentration.
Use every other day to start.
What is salicylic acid?
Beta-hydroxy acid for oily, congested, acne-prone skin. Clears pores where surface exfoliants can't reach.
Salicylic acid is a beta-hydroxy acid (BHA) derived originally from willow bark. Oil-soluble, which means it penetrates pores and dissolves congested sebum, where water-soluble AHAs can't reach.
Best for blackheads, whiteheads, and acne-prone skin. Also excellent for keratosis pilaris on arms.
Over-use strips skin. Start slow.
The method
02.
Apply at night after cleansing
Can burn in sun, night application only for most users.
Follow with moisturiser.
03.
Don't mix with retinol or vitamin C
Alternate nights, salicylic one night, retinol the next.
Moisturise between uses.
Common questions
Can I use this every day?
Depends on your skin and concentration. Start 2-3x/week, build up.
When will I see results?
8-12 weeks for most actives. 4-6 weeks for niacinamide. Retinol: 12-16 weeks.