In theory, couldn't a methylene blue cream applied to the scalp stimulate follicles to grow hair in those who are beginning to thin?

I had this thought today and I'm considering trying it out myself. I'm 31 and although I still have an ok head of hair I have noticed that I'm beginning to thin slightly on top which is to be expected as you age. I was doing some research on methylene blue today when a thought crossed my mind to add some into some leave-in conditioner and apply it to my scalp. I think I'm gonna try it and I'll keep you guys posted on my findings!