How effective is PROPECIA at regrowing hair

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2 of 3 men on PROPECIA regrew hair, as measured by hair count.

Simply put, all men who took the placebo (sugar pill) lost hair by the end of the 5-year study.

On the other hand, most men (2 of 3) on PROPECIA gained hair at the end of the 5-year study.

By the end of the study, there was an average difference of 277 hairs in a test spot (1-inch circle on top of head) between men who took PROPECIA and men who took placebo.

Throughout the 5-year study, the difference between the 2 groups increased. The maximum increase in hair count with PROPECIA occurred in the first 2 years of the study.

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