EYELASH GROWTH SERUM Prostaglandin-free. Nutrient rich. Longer and fuller lashes in 28 days. Potent-yet-gentle formula. A clean, prostaglandin-free lash serum designed to promote the appearance of longer, fuller lashes and brows in 28 days. Made with a potent yet gentle mix of peptides and vitamins, carefully formulated to boost your lashes and make them fuller and longer with a lift & gloss effect.