preferred_name: ASCORBIC ACID 50 mg in 1 g / ARBUTIN 70 mg in 1 g / NIACINAMIDE 70 mg in 1 g / DIGLYCOLIC ACID 50 mg in 1 g / 4-BUTYLRESORCINOL 70 mg in 1 g / KOJIC ACID 70 mg in 1 g / RETINOL 50 mg in 1 g TOPICAL CREAM [DRUGGIST DARK SPOT CORRWXTOR]