I typically recommend a customized skin care regimen for my patients after a laser treatment. Depending on which type of laser treatment is being performed, it is possible to have downtime during which period the skin is wounded, sensitive and needs to heal. My patients are told to avoid RetinA, Vitamin C or glycolic during that healing period and focus on bland emolliation, gentle cleansing and sun protection. Once the skin is healed, I encourage them to restart or initiate treatment with RetinA, glycolic and/or Vitamin C to enhance and maintain the results of the laser treatment. As some of these (RetinA, glycolic) can be drying and slightly irritating, it is important to give your skin time to get used to them by applying them less frequently initially and with moisturizers.