I seem to have this “sebum” buildup which creates dried residuals on my scalp since the transplant was done. Does that imply that I need a stronger shampoo rather? I was told that it was good to use a very mild shampoo because it did not remove the surface oils, but I would think sebum is surface oil? Thus, perhaps a “Head and Shoulders” might be better? Can ANY shampoo hurt the transplants and/or contribute to natural hair loss?
Any shampoo will work. The transplants are no different today than your original hair was, just less density than you originally had. Switch to another shampoo, be adventurous and experiment until you find something that works better for you.