By Amy Lawrenson

As some of you know I'm a bit of a hair chameleon. I get easily bored which means regular trips to the salon. A few months back I had bleached ends, before going an all-over brunette. A trip on holiday and a few spells in the swimming pool left my hair looking a bit khaki in the places where my hair used to be blonde. Yikes!

It's not obvious but I can see it, so I headed to Headmasters last night for an emergency appointment. Rather than dying over the colour 'the green would still be there' said consultant and member of the Pro Artistic Team Gareth Williams, I had the dead ends lopped off. I now have shorter hair by about 5cm, but it doesn't look so green.

Gareth also recommended Paul Mitchell Shampoo Three, £8.70 (at lookfantastic), it's a clarifying shampoo so it purifies the hair and removes colour and product build-up from the inside-out. In other words it gets to the root of the problem.

After my appointment I was sharing my woes with a friend, who happens to have a hairdresser friend who was at the same party, what are the chances? She said a great trick is to use Tomato Ketchup to cancel out the green. Red and green are opposite on the colour wheel, which is apparently why this works (it rings a bell from my GCSE art classes). I was a little sceptical of this old wives tale but then I heard that Sienna Miller used tomato ketchup on her hair for a year to rid the dreaded green tinge from her tresses. And she has lovely hair.

What's the worst thing that has happened to your hair? And how did you fix it? Share your tales and tips with us in the comment box below or on twitter @ELLEUK

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Image: MATT LEVER