Is it harmful to use Minoxidil 5% on unaffected area?
Answer by Nature Crazy:
Yes. Minoxidil is the main ingredient marketed in mainstream hair loss products such as Rogaine and works by opening up ATP sensitive potassium channels in the hair follicles which increases hair growth through the derma papilia. Unfortunately, the hair growth effect is short term as the single thing minoxidil is really doing is counterbalancing for a mineralocorticoid and electrolyte imbalance, which is adjusted by magnesium, potassium and other compounds. In other words, it creates minoxdil dependent hairs that will shed once you stop using it.
A good alternative would be to opt for a natural topical that does not create dependent hairs but rather stimulates hair growth naturally. For example, did you know that Rosemary essential oil used topically by itself is just as effective for hair loss as minoxidil? In fact a recent study tested Rosemary essential oil against 2% topical minoxidil for the treatment of male pattern balding and showed that both reduced hair loss but scalp itching was more frequent in the minoxidl group versus rosemary. This demonstrates that rosemary essential oil is just as efficient for hair loss as minoxidil – the difference is that it's safer and not detrimental in the long run.
Here is a link to that study. https://www.ncbi.nlm.nih.gov/pubmed/25842469
Also keep in mind that any topical you use should be considered a temporary band aid. Eventually, you want to get to a point where you aren't dependent on any product. In other words, to stave off hair loss completely you'll need to get to the root cause of the problem as opposed to treating the symptoms with drugs.
If you want more information on how to do this you an check out our video here.