DS Laboratories Advanced Blemish Defense is a PM serum formulated with a powerful combination of active ingredients including 2% Dioic Acid, 1.5% Salicylic Acid, and 3.5% Glycolic Acid. This perfecting and rejuvenating treatment helps target blemishes and improve overall skin texture. Key features: • Contains 2% Dioic Acid for blemish control • 1.5% Salicylic Acid for exfoliation • 3.5% Glycolic Acid for skin renewal • Nighttime treatment serum • Perfecting and rejuvenating formula • 30ml/1 fl oz size This advanced formula combines three powerful active ingredients to address multiple skin concerns. The Dioic Acid helps control blemishes, while Salicylic Acid provides gentle exfoliation to unclog pores. The addition of Glycolic Acid promotes cell turnover for smoother, renewed skin. As this is a PM serum, it should be used as part of your nighttime skincare routine.