Nonapeptide + AHA 6% Underarm Roll-On

Salicylic Acid — A beta-hydroxy acid that dissolves oil and dead skin inside the pore, so it's the go-to for blackheads, congestion and oily-skin breakouts. The strength is not printed, so we cannot judge the dose; that counts against the brand. Works from ~1%. OTC cap 2%. Give it 8–12 weeks for congestion & blackheads. Best for Oily, Combination. An oil-soluble exfoliant — brilliant on oily, congested skin. On dry or reactive skin it can strip and sting, so ease in slowly.

Glycolic Acid — The smallest alpha-hydroxy acid — it resurfaces the top layer for glow and even tone, working on the surface where BHA works in the pore. The strength is not printed, so we cannot judge the dose; that counts against the brand. Works from ~8%. OTC cap 10%. Give it 4–8 weeks for tone & texture. Best for Oily, Combination, Normal. A surface exfoliant for glow and texture. It raises sun sensitivity and can irritate dry or reactive skin — daily SPF is non-negotiable.

Guidelines of care for the management of acne vulgaris ›

Management of Acne Vulgaris: A Review ›

A systematic review and network meta-analysis of topical pharmacological, oral pharmacological, physical and combined treatments for acne vulgaris ›