What Is Keratin? Plus, Our Picks for Hair & Nails

About This Product: Keratin is in your eyelashes as well! Eyeko has created their Black Magic Mascara with keratin to help you grow longer and stronger lashes. With a mixture of shea butter and beeswax, you can get eye-popping lashes while making them healthier. Reviews Say: “This is my favorite everyday mascara and I have tried them all! It looks the same when you get home at the end of the day as it does when you put it on. The brush contours perfectly to my eye and gives a great application. Plus, it never feels dry or cakey—I really do think it moisturizes my lashes!”

About This Product: Alterna has created an Anti-Aging Miracle Multiplying Volume Mist that is designed to give your hair the pick-me-up it needs. Made with a blend of caviar extract, algae and kelp extract, keratin and biotin, this quick and simple spray gives your hair a hint of volume while repairing your damaged hair. Reviews Say: “I have very fine hair, but a LOT of it. I usually don't use products because I hate when my hair gets weighed down, but this product is great! I don't feel like it leaves the normal oily feeling a lot of volumizers do, and it definitely adds volume to the roots. A little goes a long way, so once I finish the sample I got, I will be buying the full size!”