How Long Does Latisse Last? Are Results Permanent?

Thanks for your question -
Latisse increases lash length, thickness and darkens lashes by effecting the growth phase of your lashes.
Latisse improvements to your lashes will last approximately through a cycle of lash growth - this would be 1 - 2 months. Many patients go into "maintenance phase" applying Latisse every three days to maintain their growth.

Regarding eye color change (there is some discussion below) - when used as a glaucoma medication (different dosage and applied directly into the eye) 3 out of thousands of patients noticed that green or hazel (not blue - has to do with the pigment in the eye) got darker - of particular note none of the three patients thought the change was significant enough to stop using the medication. And this was NOT seen in the Latisse trial. This is not to say that it can't happen - I just think we should be clear on the facts.
I hope this helps.

Thank you for the great question.  Latisse is FDA approved. It contains bimatoprost 0.03% which boosts hair growth to give you longer, fuller and darker eyelashes.  It can more than double your lash fullness in a matter of 16 weeks. You can obtain a prescription through a dermatologist, who will first make sure the product is suitable for you. 
Results may not be permanent but can last a very long time.  You can always use Latisse in the future to maintain the fuller and darker eyelashes.

When Latisse is started it takes about 2 to 3 months
for the eyelashes to achieve maximal length and thickening.Once this point has been reached most
patients are started on a maintenance routine that utilizes less Latisse.It’s
important to realize that Latisse doesn’t permanently lengthen the
eyelashes.When Latisse is discontinued
it usually takes about 2 to 3 months for patients to return to their baseline.

When used daily along the upper lash line studies show at sixteen weeks there is an average of 50% improvement in the length and thickness of lashes. First you will note increase in length followed by fullness. After the sixteen weeks twice weekly use of Latisse will help maintain lenght and volume achieved.

In my practice, I find that most patients begin to see results after approximately 2-3 weeks of using Latisse each night, with optimal results occurring at week 12.  Once a patients desired lash length is achieved, I recommend using Latisse 2-3 times a week to maintain results.  If a patient discontinues the use of Latisse, they should expect their lashes to return to their original length and thickness within 8-12 weeks.

The results obtained form the proper use of Latisse can be dramatic, but they are not permanent.  Patients must continue to use the medication in order to maintain their appearance.  After stopping the medication, patients can expect their appearance to return to normal over the period of weeks to months.