pdc DERMAAID Derma-Aid Triple Active Shot Serum 20g Set of 2 Three Active Ingredients: Tranexamic Acid x Niacinamide x Panthenol! Medicated spot serum that addresses whitening, wrinkle improvement, and prevention of skin roughness. New, unused. I bought it on impulse, but I haven't had a chance to use it, so I'm selling it while it's still new.