Skinmedica TNS serum, Retin-A, and Lytera 2.0: how can I effectively use them together?

April 20, 2019
Asked By:michposey in Shreveport, LA

I am currently using skinmedica TNS serum. I want to incorporate Retin-A and skinmedica Lytera 2.0 for dark spots. What order do I use them in for best absorption and results?