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welp, tryed this method today after getting a 1 hour notice of having to give a hair sample. i'm a very light user of pot and in the last 2 weeks i have been taking a few hydros here and there. i upped the amount of bleach and peroxide a little. this is all i did, no cleaning shampoos or anything of the sort. they say i should know by friday if have the job. will post what i find out.
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