Do you soak it? Or have a soak water dish in the habitat? Not super deep as your guy is small. Could just be dry from the heat and dry if it's not damp. I think sulcatas need humidity too when that young, I'm gonna look lol
It's normal for baby tortoises' skin to peel, however, it minimizes it if you follow the set-up instructions for baby sulcatas shown in the pinned threads at the top of the Sulcata section. Your tortoise should be set up in a humid environment, which mimics the wet, monsoon conditions they hatch out in in their native environment.