How can I get my hair the right shade of red?

[redren]

Hi, I'm looking for a bit of advice. I'm a natural blonde but have dyed my hair various shades of red for numerous years. For some reason I decided to bleach my hair blonde last year. Long story short, I didn't like it and decided to go to the salon to go back red. However now my hair just seems to soak up the colour and does not turn out the deep red I desire, except for at the roots where the peroxide has grown out. My hairdresser tried a deep condtioning treatment before applying a semi permanent colour over the top but this still didn't work. I'm due back at the hairdressers next week and was wondering if there is anything I could use to help with the colour?

I would be deeply grateful for any advice you could give and needless to say I've learned a very valuable lesson about leaving peroxide to the experts!!!

Many thanks in advance