- Quality 1st Retinol Niacinamide Night Serum
- 30ml night use serum
- 36 night serums in each carton
- Evening partner to vitamin C serums

Quality 1st Queen Secret Quality First Retinol plus Niacinamide Night Repair and Moisturizing Serum is a 30ml serum from the Japanese brand Quality 1st. The title describes a night serum, so it is intended for use in the evening routine.
The export carton contains 36 bottles of 30ml. Ground Biotech supplies this night serum wholesale for export to importers, distributors and Asian supermarkets, and it can be displayed with the vitamin C serums that are meant for other times of the routine.