How effective is Propecia over hair loss products?

Propecia (Finasteride) is effective drug to control to fail your hair. Propecia works to inhibit the formation of DHT. Adverse effects of the DHT on the hair follicles, is reason of hair loss. Finasteride is ingredient of Propecia. If you are taking Propecia regularly, Propecia will give result absolutely.
Propecia is newest most popular drug in market for hair loss treatment. And Propecia also has the longest, most successful run of any treatment that has undergone FDA experiment successfully where number of people still maintains healthy hair.
Statistics show the efficacy of Propecia, is:

 17% Improved
 66% Maintained
 1% visible Loss
 2% side effects


And other product show different figure:

 8% Improved
 30% Maintained
 33% visible loss