If I applied my Latisse one night ago when my eyes felt a bit watery, will the rest of my bottle still be effective?

I would not recommend putting the Latisse drops into the cap.  Latisse should be applied directly to the applicator without touching the applicator tip.  The applicator should be discarded after the application.

We do not recommend using the "cap method" with Latisse, and especially if you have any signs or symptoms of any infection, this should never be done. Having said this, it is unlikely unless you do have an eye infection, and have now contaminated the bottle, that this would be a problem. However it is definitely worth your time and trouble to follow the instructions explicitly so you do not have these types of concerns in the future. Best wishes,

Hi gb0484, Was your watery eyes due to eyestrain, or dust? If so, you can safely use Latisse. However, if you feel you had a viral infection, conjunctivitis etc., it makes sense to discard your present bottle.That said, you buy two bottles or just follow the instructions closely so you don't run the risk of cross-infection.All the best, Justin Harper,M.D.

Thanks for your question.  While the cap method helps you maybe minimize the amount of product lost, you do run the risk of contaminating the product if you "double dip."  The instructions for use that accompany the product recommend using one drop on one brush for one eye, and then another drop on another brush for the second eye.  By using a different brush for each eye you help minimize the transfer of infection or bacteria from one eye to the other.  In order to use the product in the safest manner it is best to follow product recommendations.  If you consider that you possibly contaminated your whole bottle then that's much more money lost than if you end up saving a few drops in the long run by using the cap method.