We've been independently researching and testing products for over 120 years. If you buy through our links, we may earn a commission. Learn more about our review process.We updated this article in April 2022 to include additional information about lash growth serum safety following the settlement of three class-action lawsuits made against Rodan + Fields Lash Boost, and removed five products that contain isopropyl cloprostenate. The remaining lash growth serums below have been vetted by the Left and right, beauty products are promising consumers the natural lashes of their dreams, but the truth is that most of those products won't work in the long-run or even at all unless you use a prescription product. "An eyelash growth product should help stimulate the growth of hair of the eyelash," explains Birnur Aral, Ph.D., director of the Beauty Lab at the Good Housekeeping Institute. "For hair growth, a product’s actives must reach the hair follicle, and as such ... should be regulated as a...
