We recommend avoiding blood thinners (NSAIDs) for one week. Avoid lasers and chemical peels for 4 weeks before your treatment. Avoid all skincare products containing retinol for 4 weeks. Discontinue Accutane use 6 months prior to treatment. Drink a lot of water for 4 days before the treatment. Avoid sun tanning, sun exposure and spray-on tanning for 2 weeks before.