Retin-A. (Tretinoin 0.01% Gel; 0.025% Gel; 0.025% Cream; 0.05% Liquid; 0. 05% Cream; 0.1% Cream; 0.1% Micro Gel).Of all the agents listed, only Renova is U.S. FDA-approved for the treatment of skin surface roughness following UV exposure. Approved by the FDA in 1995, Renova is...