It can be effective for mid-stage androgenetic hair loss where follicles still remain but function is weakened, cases with insufficient density recovery despite medication, and pre/post hair transplant scalp improvement. However, in advanced hair loss with follicle loss, autoimmune alopecia areata, or acute stress-related hair loss, it may not be a primary treatment and specialist diagnosis is required first. Since it is not applied to all types of hair loss, treatment is determined based on current follicle condition.