Not good if you want to go. From blond to brunette or vise versa – Hair Color Changer . Review

So basically you "draw" over your hair in the photo and it overlays up to a 50% opacity tint in the selected area. I'm super blond and wanting to see what I'd look like as a brunette- there is no way to get it dark enough with the 50% opacity limit. The darkest color makes me look grey/mousey. This is perfect for people wanting pastel/mermaid hair though.
Review by shy_violet435 on Hair Color Changer ..