The daytime regimen is Daily Cleanser – Daily Toner – 10% Vitamin C Serum – Daily Moisturizer. Age Defying Tri-retinol Complex and Dual Action Lightening Cream can be used day and night. Note that the Dual Action Lightening Cream is also a carefully formulated moisturizer, so if you choose to use Dual Action Lightening Cream over your entire face, neck and other areas, it can take the place of our Daily Moisturizer. Age Defying Tri-Retinol Complex can be used during the day, but only if followed by sunscreen application. Retinols, Vitamin A, increase sun sensitivity.