Let's be honest not every vitamin C serum actually does anything These ones? You'll see a differencewe're talking Kbeauty ascorbic acid vc formulas here, ones that actually work @107global Soseo [IOPE] Vitamin C Expert 25% Antioxidant Toning Ampoule 23ml Vitamin C Expert 25% Antioxidant Toning Ampoule IOPE Vitamin C Expert 40% Mask Concentrate 15ml Best Price and Fast Shipping from Beauty Box Korea the secret to bright, glowing skin vitamin c IOPE's best seller contains 25% pure l ascorbic acid AND glutathione, making it even more effective than your fav #koreanskincare #iope #vitaminc