Quality 1st The Derma Best VC100 + Retinol is a premium Japanese sheet mask designed for comprehensive anti-aging care. This flagship product combines six types of high-concentration Vitamin C derivatives, 7% niacinamide, 50% galactomyces ferment filtrate, retinol, and six types of ceramides. The mask targets multiple skin concerns including pores and dullness, featuring a high-adhesion premium sheet that delivers results in just 3 minutes. Best suited for those seeking intensive skin rejuvenation and brightening in a time-efficient format.