Paula's Choice BOOST 10% Azelaic Acid Booster Serum — 30% Off

Paula’s Choice BOOST 10% Azelaic Acid Serum is a targeted treatment for hyperpigmentation, post-inflammatory marks, and rosacea-prone skin — three concerns where azelaic acid has accumulating clinical evidence alongside being gentle enough for sensitive skin. The 10% concentration matches the prescription-strength formulations many dermatologists recommend, while remaining accessible as an OTC product. Azelaic acid’s anti-inflammatory action also makes it one of the few brightening actives that pairs cleanly with retinol routines without compounding irritation. With 6,100+ reviews averaging 4.3 stars, the formulation has earned a place in evidence-leaning skincare routines. At $27.30 — 30% off the $39.00 list — this is one of the most accessible price points for a serious azelaic acid treatment.