Starting two treatments Simultaneously for Hair Loss:
For individuals with genetic hair loss, I never recommend starting two treatments at once. Certainly the rules are sometimes a little bit different for other types of hair loss, but for genetic hair loss, I'm a big believer in one at a time.
Wait 9 months
If one starts two treatments at once, it can be challenging to figure out what is working. If a patient has a hair specialist who can follow scalp growth parameters carefully, waiting 4-5 months is reasonable before starting another treatment. This gives times for the physician to evaluate changes in the scalp. Otherwise, if patients are figuring things out 'on their own" waiting 9 months is absolutely critical in order to evaluate if a treatment is working or not.
Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Vancouver office at 604.283.9299