Kruidvat's eyelash growth serum is selling out fast, promising longer lashes. But reports suggest it might also alter eye color. As dermatologists and ophthalmologists with years of experience treating eyelash and glaucoma patients, we've seen this concern firsthand.
The key ingredient, bimatoprost, is the same used in prescription eye drops for glaucoma. Years ago, clinicians noted longer eyelashes as a common side effect, leading to its widespread use in over-the-counter serums for lash enhancement.
Medical experts confirm bimatoprost can darken iris color by boosting melanin production. In one study of nearly 700 participants using a bimatoprost serum, two experienced slight eye discoloration.
Applied correctly to the upper lash line, the serum shouldn't enter the eye, minimizing risk. Still, the possibility exists—consult an eye specialist if concerned.
