An eyelash serum is a specially formulated treatment designed to lengthen, thicken and nourish your natural eyelashes. Providing a kinder alternative to eyelash extensions, they typically contain a blend of ingredients to stimulate lash growth. Eyelash serums are not for everyone, especially those with sensitive eyes or a history of eye health issues. Over-the-counter eyelash serums are considered cosmetics rather than medications, so they may contain ingredients not approved by the FDA. Check with your eye doctor for the best information. For beginners, Tsai recommends starting with a lower-strength formula and gradually increasing from there. “Allow your skin and lashes time to adjust to the product to minimize any side effects,” she advises. However, most over-the-counter eyelash serums are generally formulated at a suitable strength and do not require a prescription.
