Saturday, December 19, 2009

What is the maximum amount of time one can keep lice shampoo in their hair?

I have the type from a pharmacy - the strong chemical type - in my hair. What is the maximum amount of time I can have it in for? I lost the directions sheet and planned on having it in for 2 hours. Is this damaging or in any way dangerous?What is the maximum amount of time one can keep lice shampoo in their hair?
I usually leave it in for around three minutes that gives enough time to kill the pests.

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