Obra Ampoule Tonic

I have thin hair, so I'm a bit worried about hair loss and am trying to take care of it. I've tried taking biotin, brewer's yeast powder, and black beans before... but I heard you have to take huge amounts and the effects are minimal. Anyway, right now I'm using a hair cleanser, tonic, and essence. When I spray this tonic, I get a cooling sensation, and my scalp feels tingly and refreshing. I'm not sure yet if my hair is falling out less, but I plan to keep using it. However, when it gets hot, it feels like my hair is falling out more, maybe because my pores open up. Is that normal...?? ㅠㅠ