My Favourite Exfoliator. This combined manual and Lactic acid based product does a great job to lighten and brighten my mature skin. I use it twice a week generally in the evening. What I really like is that the manual grains are not to harsh but yet do a great job. As I age my skin is becoming more sensitive but needs a good active product so this combination works well. What I really like is the flexibility in that I can use the product either after cleansing and leave it on for 5 minutes to allow the Lactic acid to do its job or combine it with my cleanser when I need just a quick refreshed look. Then to complete my evening facial routine I add my Vitamin C serum and Dermaboost serums, which now penetrate really well and a choice of night cream.1-800-461-3745 TheraGenesis Skincare Want to read more? Subscribe to one of our monthly plans to continue reading this article.