An Insider's Guide To Eyelash Extensions

If you like the idea of instantly longer and thicker eyelashes, semipermanent lash extensions (like celebrities wear) may be the solution for you. However, there are some things to consider when choosing them.

First, there are a number of different brands that offer lashes, but just how natural they will look depends on the aesthetician applying them. Similar to how you would choose a plastic surgeon, you shouldn't blindly choose an aesthetician. Ask to see photos of the lash professional's work since they'll need to have an aesthetic eye to achieve beautiful results.

Also, ask what kind of glue they use. You only want American-made medical or surgical grade glue that is formaldehyde-free. Exposure to formaldehyde in the eye area can cause swelling and puffiness. "All lash adhesives should be physician-formulated, medical grade and should never contain detectable formaldehyde as manufactured and packaged," says cosmetic chemist and owner of NovaLash, Sophy Merszei. Do your research as any brand worth trusting should provide written documentation of the glue formulation and your aesthetician should only use the glue they advertise.

Next, decide which kind of lash you would like. There are two kinds to consider says Glad Lash Founder and Esthetician Esther Bolkin, synthetic lashes and mink lashes. Mink is softer and feels more luxurious, offering a very natural look. Synthetic lashes offer big drama and are sturdier than mink, says Bolkin.

It's also important to make sure you get single eyelash extensions-one synthetic lash for each natural lash as opposed to "bundles" which can cause breakage of your natural lash. Too much weight on one single lash is not only uncomfortable, but can damage your lashes.

If you want to add more drama to your eyelash extensions once applied, only use water-soluble mascara, however, constant use of mascara may shorten the lifespan of lashes. Whatever you do, don't use any waterproof varieties.

Finally, avoid thick eye creams and oil-based products like cleaners and makeup removers, and try not to sleep on your face as any pulling might tug your lashes out.

If you properly care for your extensions, they should last between two weeks and two months, depending on the brand.

Watch this video below to see the application process.