I keep reading that it’s important for people with fine and thinning hair need to keep their scalp balanced. If not, you can develop fungal infections or black hair follicles, which means that a new hair won’t grow there. I know this because I have find, thin and blonde hair, and I started losing clumps of it when I showered. I got this info from my trichologist and dermatologist, but please always check with your own doctors. What works for me may not work for others. When I apply this, I fell instant scalp relief. It felt SO GOOD. My scalp stopped itching and I noticed more new growth than usual. The only downside is the package. I lost about 1/2 of my bottle the first time. The spout is HUGE, and an uncomfortable amount came out. I switche led it to a bottle with a spout that was much more narrow and it solved the problem.