Using retin a (tretinoin) 0.05 % once week and a over the counter retinol 0.05% 3ice a week. can i add epiduo into the mix? not all on the same night,alternating!

Try Retin-A only: You might try sticking with just the rx Retin-A and apply it every other night or every night as long as you do not get excessive redness or dryness of the skin. If so you can reduce the applications to every third day or whatever schedule works. Using the Retin-A on this type of schedule for several weeks is a good first step. Other meds can be added later by your doctor if needed. Good luck!