Definitely not going to help with hair growth but it did make scalp feel nice, not itchy etc and a healthy scalp is needed for hair to grow so it's not a negative, it just isn't going to make hair grow any quicker or thicker

This is my second time purchasing this caffeine serum, its great for my hair. I generally leave it in longer than it say on the bottle, and then wash it off when doing my normal shampoo routine. After using my hair feels fuller and my scalp feels good.

I wouldn’t recommend purchasing this. I saw no new growth and to be honest products like this are a gimmick.  Take vitamins and look after your hair.  This product was a waste of money 

This has a subtle smell which is nice. I haven't used it for long enough to see any proper effects, but I think it is helping.

I love this. I can see growth in my hair already, I use it once a week and leave it overnight. It’s perfect, I don’t feel like it adds weight to my hair at all!