Scalp Micropigmentation (SMP) is a common hair loss solution in the United States for a good number of reasons. For starters, people choose it because it is not as invasive as some other hair loss solutions like hair transplants. What’s more? When compared with some other solutions like Biotin shampoos, laser caps, and Propecia which are not invasive, SMP has proven to be more effective in producing visible and desired results.