I used the smart pure purple hair colour its meant for the whole head but i chose to do chunky streaks right so heres how it went : I have dyed my hair many times so i felt no reason to do a skin sensitvity test but where im at school i had to do a strand test to check the colour wasnt to bright so i opened the sachet no .2 and poured half a tea spooon of it into the mixing tray which i have to say was quite difficult as it will leak if left open so i balanced it on the box :) then i added half a tea spoon of the tube and mixed with the scahet in the tray until it looked like a proper hair dye ( it took me a while ) i left the colour on a strand of my hair for 40  Read the complete review

The Smart Colour range have always impressed me by managing to pre-lighten and dye my (naturally nearly black, therefore hard-to-bleach without chemically burning my scalp off) "difficult" hair various shades of lurid pink and red before, but that was with the highlight kits... This set, however, is an all-over colour, which claims to do a very similar thing, but in my experience didn't quite have the vibrant effect that I'd hoped! The first time I used this product- on my dyed jet black hair- it didn't really show up at all, and was a bit of an anti-climax. The second time I used it- on pre-bleached (thank you, Jerome Russel), slightly orangey hair ...  Read the complete review

Smart Highlights (Pure Purple) Not having any of my usual Directions hair dye in stock and having somewhat faded pink/purple hair my other half helpfully brought home a Smart High Lights kit. The box promises good results on dark hair too which is a rare thing, normally you have to pre-'bleach' your hair to a light shade for crazy colours to stick. BUT it works well on darker shades of hair as it contains hydrogen peroxide (bleach, basically) to quote box: "...uses a unique professional formulation" This stuff bleaches your hair and at the same time ' deposits colour' So no pre-lightening necessary, I personally wouldn't recommend for ...  Read the complete review