Eyelash extensions, as great as they look, can take a toll on your natural lashes. When it's all said and done, you want to make sure they're in the best possible shape by giving your real lashes some extra TLC. To start, she advises against using a mechanical eyelash curler. "They can damage your natural lashes in many ways, including pulling the lashes out at the root or breaking them in half," Richardson said.
While most people use eyelash extensions as an excuse to not wear makeup, if you are — or if you're putting on mascara to hide sparse areas in your extensions as they fall out — removing it at the end of the day is crucial. "If you are still wearing makeup, don't forget to take off eye makeup before bed," Richardson said. "All your creams, shadows, liners, and mascara can cause buildup and potentially weaken your natural lashes."
And last but not least, reach for a lash serum. "Just like you would apply night cream or serum to your face, applying a lash conditioning serum before bedtime is key," Richardson said. Her pick: Envious Lashes Luxuriating Lash Conditioning Serum ($38, originally $75). No matter what stage your lash extensions are at, and even if you don't have any eyelash extensions at all, using a serum on them is a good habit to start for stronger, healthier lashes.