Q: Patti, how long should I wait before applying other products over the serum?

A: All serums need to be applied directly to clean skin morning and evening in order to maximize its effectiveness. After you cleanse and apply toner (if necessary), apply a dime-size amount of the Renormalizing Serum

In the morning, follow with the Rejuvenating Day Cream or the Rejuvenating Day Lotion SPF 30. In the evening, follow with the Restoring Night Cream.