Review (1/5): Nozzle allows only a very small dab to flow out.  Adjustment is possible but inadequate.
I was always uncertain before about to what extent Amazon reviews are legitimate or fake. Now I know. These top reviews are totally and ridiculously untrue. I just finished applying hair color and I could barely finish because my arms were so tired at having to squeeze incredibly hard on the bottle to get just a little squirt of hair color to apply. What a workout. Have thrown these away. The nozzle is tricky I know and I spent a fair amount of time trying to turn the cap so I could get the most hair color in one squirt. Never got more than a little dab for a lot of effort. Takes too much time and energy. Surely there are better bottles out there. I will keep looking or probably go locally to a beauty supply where I can test the nozzle before I buy (and invest my time and energy).