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4.9A-Control 10% Azelaic Acid Serum
  • “An absolute favorite again”6:35–6:35
  • “It's got that 10% azelaic acid which is wonderful in its own right”6:37–6:40
  • “It's also got touch with snail mucin so if you like that snail action in your routine you don't have to have a separate toner you can use this and it's azelaic acid and snail mucin kind of all-in-one”6:40–6:45
  • “Also has some great pro acne fighting ingredients”6:50–6:53
  • “Anyone out there can use this and it's like the perfect mid strength azelaic acid that just feels great”7:04–7:06
  • “That viscosity means it sinks in to perfection”7:30–7:34
  • “Just feels really really nice on the skin I absolutely love it”7:37–7:40
  • “Just a gorgeous bouncy hydrating but also beneficial because that azelaic acid is going to reduce hyperpigmentation fight acne just absolute perfection”7:40–7:47
  • Source: Korean skincare 2025 full routine using my favorites - Mar 15, 2025