A 3ml bottle of Latisse generally lasts about 30 days when used with the brushes provided when purchased. Some patients use a thin eyeliner brush that can better conserve the product and can therefore make it last about 6 weeks. The issue with using a single brush as opposed to a new brush with every application to each eye is the risk of contamination. If you decide to use a different brush and use it for both eyes, just make sure the brush is clean prior to application and between applications to each eye.
Latisse promotes eyelash growth when applied to theupper lash line and the lashes can become more full and darker as well. Mypatients really love the amazing, dramatic results. A Latisse Setis designed to last 30 days, however, maximum improvement is achieved at about16 weeks. Refills would be required to maintain the results.