Many people use eyelash extensions and serums to get the look they want, but you may wonder if they’re a safe choice. The products can cause side effects, but there are ways to lower your risk.

Before getting a set for your own eyes, the eyelash extensions pros and cons list is essential to know, along with how long they last, the cost, and the aftercare and upkeep.

Eyelash extensions are semipermanent lashes that are hand-glued on top of your natural lashes, says Andra Marin, artistic director and expert lash stylist at Courtney Akai Lash Boutique in NYC.

How Much Do Eyelash Extensions Cost? Cost varies depending on the location, technician, and the final look. At Envious Lashes, a starter set is $105, and “Bombshells”—a favorite of ...