Is offering Allergan's new 5 mL Latisse size worth the extra expense for your patients?

Allergan launched on August 1, 2012, a larger 5 mL bottle of Latisse in the USA. The original sized bottle is 3 mL.  

Latisse (bimatoprost ophthalmic solution) is a FDA approved drug to treat inadequate and aging eyelashes. Approved in December 2008, over 3 million kits have been sold with approximately 500,000 users. It is estimated that 1 Latisse kit is sold every 30 seconds.

The new 5 mL Latisse comes with 140 brushes for 10 weeks of manufacturer suggested usage, as opposed to the 3 mL version which comes with 60 brushes for about 4 weeks of manufacturer suggested usage. At this point, there is a choice to puchase 5ml or 3ml bottles of Latisse. The suggested retail for physicians to sell at their offices for a 5ml bottle of Latisse is $179 versus $120 for a 3ml bottle. But, it's not just the price and volume of Latisse that has changed.