At this stage we have shrunk the colour molecules; now we need to get them out of our hair and this is where the rinsing and buffering comes into play. You are going to apply your semi permanent colour onto wet hair – I know it probably says dry but ignore that! The following 'tutorial' was written by Scott Cornwall - the inventor of Colour B4 - and posted on The Student Room.

So as much as people (Including my other half Mark who loves my hair dark) loved it, I wasn’t totally comfortable. Having trained as an aveda hair dresser we have told that such products will absoutely ruin your hair! You hair will be slightly more porous and the colours going to grab really quickly so you probably won’t need to put it on for as long as recommended and will need to keep an eye on it.I had many layers of different red hair dyes on over the past year including permanent and semi permanent.

I wish I hadn't had to crack on with my dye attempt, it would have been interesting to see if I had any re-oxidising during today! So if you use very hot styling products (over 230 degrees), chances are your hair is too badly damaged for the product to be effective. If however you want to recolour all of it by all means do, but check it at regular intervals, just scrape a little colour away from the hair with your nail and have a look at the colour to see if its right for you.Here’s a product I have used a few times before and from experience can say it does what it says on the box. As I’ve never reviewed it on my blog and I wasn’t totally happy with the depth of my colour from the other day I thought I’d share with you how to use it and my thoughts on the whole process. Obviously using red hair dyes that have sneaky peroxide additions in them will have lightened my hair, but the sun also takes colour out my hair anyway in the summer. It kind of ate into my hair making the hair strands very thin not just thin in volume but the actual hair itself.

I've seen it in Home bargains, probably in bodycare too - although if they don't have jo bazz, I got colour b4 for 6. Next, you have to wait a short while before re-applying the remaining buffer then rinsing straight away. I used colour b4 again (and only needed 1 box this time as I didn’t go over the yellow at the top) and most of the rest of the build up dropped out. My hair didn't feel great for a while after as it is a bit damaging, but a few good conditions and it was fine. When you use the second part of the Colour B4 process (rinsing and buffering) you are then removing the oxygen and the particles will leave the hair – that is why is it IMPORTANT you follow each stage of this to the letter if you like – otherwise if you don’t the particles will oxidize and expand again leaving your hair the colour you are trying to remove (And also making you waste money).Hello 🙂 Ok, I would probably allow 2 weeks for your hair to ‘get back to normal’ before applying a permanent over the topp – having said that I have done one straight away before but it did go a fair bit darker (Maybe 2 shades). On a previous occasion I thought I did just during the rinse/ wash/ dry process which didn't occur this time. You really do need to keep moving your hair around during rinsing which is difficult when it is as dry as straw: I resorted to alternating gentle scrunching with finger combing. I was half hoping that it would go back to blonde, the colour I always lighten it to before I put a bright colour on. Even if you are dying your hair a dark colour they still contain ammonia or something similar which is bleaching your hair too.