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[macdruid]

Studies seem to indicate that 2% is, generally, not incredibly better than 1% for normal use. Unless, of course, you have something like Ringworm of the scalp - In which case the 1% is much less effective.

 

[The Gardener]

I second what McDruid said.

 

[macdruid]

Thanks for the replies.

One more question; how long should I let the shampoo set in before I rinse it out?

I usually let it sit for around 3-5 minutes on average, 2-3 times a week.