La Roche-Posay Effaclar Duo is a fast-absorbing, elegant texture. Non-drying, non-comedogenic, oil-free, fragrance and paraben free. Dermatologist tested on all skin types, even sensitive skin. Tested on multi-ethnic skin. - Micronized Benzoyl Peroxide [5.5%] - acne medication micronized to reduce irritation and to increase penetration. - Micro-exfoliating LHA [0.4%] - 6X more effective in keratolytic action than salicylic acid alone; precise cell by cell exfoliation. Who is this for? Ideal for those with acne breakouts and blackheads who want a skin-clearing treatment.