Eflornithine
"I have PCOS and so I have a great amount of upper lip hair and on my chin. Instead of pulling 20 chin hair a day I pull about 4-5 if I use the product 2 times per day. I have also noticed over the past 3 months that the hair on my head has been falling out so I backed off on using this product to 1 time per day.  I continue to lose a number of hairs from my head everyday.  I know if I back off to using Vaniqua once every other day my chin and lip hair will increase so not sure what to do."