I've got around 30% grey hair, and have it done at the hairdressers every 6 weeks. With a cut, I'm paying around £85 a time, and whilst I always love it when it's done, I find that I'm getting a really bad headache for a few days after from the smell of the colour and my scalp is getting very sensitive. I don't know whether to try something more natural but don't really know where to start looking 
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