Niacinamide inhibits melanosome transfer while arbutin inhibits tyrosinase. Dual mechanism for enhanced brightening.
Vitamin C reduces melanin that has already been produced, while arbutin prevents new melanin formation. Dual-mechanism brightening.
Tranexamic acid inhibits plasmin-induced melanogenesis while arbutin directly inhibits tyrosinase. Complementary anti-pigmentation pathways.
Azelaic acid selectively targets abnormal melanocytes while arbutin broadly inhibits tyrosinase. Powerful depigmenting combination.
Both inhibit tyrosinase but through different binding mechanisms. Combined they provide stronger melanin suppression.