If you have no visible eyelashes the doctor will consider any underlying conditions to determine whether this product is appropriate for you. If you are taking, or have recently taken, any other medicines, including other bimatoprost products, or those not prescribed. Use of Latisse in conjunction with other bimatoprost products may reduce the effectiveness of these products to lower intraocular eye pressure. If you are pregnant or breastfeeding a baby, you should ask your doctor or pharmacist for advice before taking any medicine. If you have have an active eye infection or inflammation (e.g. uveitis) any other eye conditions such as active eyelid disease, infection or broken or irritated eyelid skin or eye injury. If you need to have eye surgery. If you are allergic to bimatoprost, to any product ingredients, including benzalkonium chloride, or to any of the parts or the container.