The Effects of Caffeine on Hair Growth

I made a video and I was saying that the finasteride wounding and even probably massage were all promoters of nitric oxide. That could have a vasodilative proliferative effect on the hair growth but you would be promoting hair growth at an exponential cost. caffeine or topical methylene blue mixed in with vitamin C or niacinamide or aspirin or agmatine is relatively unexplored, so I guess I'm using this as a way to say I'm not saying do nothing, but it's just like I'm really skeptical that these types of injurious ways of going about things are good.