Vitamin C on Lips Before After TikTok Can You Use Vitamin C Serum with Red Light Therapy? Expert Guide Solawave You can use vitamin c after microneedling! , Not every vitamin c serum is made the same so it depends on the formulation of the serum. If you're trying a new vitamin c serum , patch test your serum a Vitamin C serum can be used either in the morning or night and even twice a day. , If you apply retinol at night, then use vitamin C serum in the morning. If you only use a moisturiser at night, then