Purito Seoul — Azelaic Acid 10% Kojic Tea Tree Serum 30ml

Purito's Azelaic Acid 10% serum is one of the most concentrated azelaic serums in the ParaDermia catalog (double the concentration of Cos De Baha A5 at 5%). At 10%, azelaic acid exerts documented multimodal action: keratolysis of hyperkeratotic corneocytes, tyrosinase inhibition (melanogenesis reduction), anti-inflammatory activity by modulating pro-inflammatory cytokines, and documented activity on the skin microbiome associated with blemishes (notably Cutibacterium acnes) — an action profile that simultaneously covers blemishes, pigmentation, and inflammation. The bi-phase format with Hydroxypropyl Cyclodextrin (encapsulating agent) is a sophisticated formulation approach: the capsules protect sensitive active ingredients from oxidation and allow for controlled release. Dispersion by shaking (3 to 5 times) is therefore a critical step — without it, the active ingredients remain aggregated and the dose is inhomogeneous. Tea Tree Leaf Water at 10% is a significant concentration for a hydrolat — surface action on the skin microbiome. Tea Tree Leaf Oil at 50 ppm is a functional trace. Kojic Acid at 1,000 ppm (0.1%) complies with the EU limit (1% maximum) — complementary contribution to skin tone uniformity via tyrosinase inhibition. Hydroxydecyl Ubiquinone is a modified derivative of ubiquinone (structural analogue of CoQ10), a mitochondrial antioxidant — distinct from idebenone stricto sensu but of the same functional family. Malachite (copper-containing mineral extract) and xanthophylls (lutein/zeaxanthin carotenoids) provide anti-pollution antioxidant protection. Coptis japonica root (berberine) provides complementary action on inflammation. Bisabolol modulates the potential irritation of 10% azelaic acid. Pregnancy note: the brand explicitly advises against use without medical advice — 10% azelaic acid is also used in dermatology during pregnancy, but for medical purposes and under prescription; cosmetic caution is necessary.