BazzСухаяI used Vit C during the day and retinol at night. You can also use them alternately at night. Today retinol, tomorrow Vit C30UkaMСухаяthank you 00View 1 more repliesNeginСухаяNo. Use them in different routines. Vitamin C in the morning and retinol at nights 30BlueNWhiteСухая/ЧувствительнаяBest not to use together in the same routine! 30BGTNЖирнаяnopeeee10DaveganpicksbymishaЖирная/ЧувствительнаяNope dear..10123