Medicube Azelaic Acid

Medicube pairs azelaic acid with niacinamide across this line, aimed at skin that breaks out and runs oily. The toner is the one product where the brand puts numbers on it: 4% azelaic acid and 2% niacinamide. Worth knowing before the first use — Medicube warns that azelaic acid at high concentration is a powder by nature, so a faint white film on the skin is expected behaviour, not a fault.