To use Careprost bimatoprost, first, clean your hands and face with clean water, take away any artificial lens or makeup. You can place your contact lens back 15 minutes after you have finished applying. And For more info visit Strapcart.To use Careprost bimatoprost, first, clean your hands and face with clean water, take away any artificial lens or makeup. You can place your contact lens back 15 minutes after you have finished applying. And For more info visit Strapcart.