Neogen is a Korean skincare brand, and Keauty stocks mostly its Dermalogy line: Real Retinol Serum, Real Niacinamide 15% Serum, Real Peptide Serum, Real Hyal Panthenol Serum, Real Heartleaf Soothing Essence and Cream, and several exfoliating pads. A few makeup items such as the Extra Slim Maxicara and Tinted Edgeliner are listed too. Introduce retinol or a high-percentage serum gradually, for example every second night.