L’Oreal Paris Lash Boosting Serum is the first drugstore brand (that I known of) to jump onto the lash enhancer band wagon. It promises to give thicker and fuller lashes in 4 weeks. According to their site, this serum helps with “less lash fall-out when removing makeup. The breakthrough formula contains Centella Asiatica Extract and Arginine to reinforce, condition, and protect each lash”. It sounds like this will not make your lashes longer but it will help keep them healthier and fuller.
Instead of applying the product to your lash line like an eyeliner (like many of its predecessor), you apply this like you would with a mascara, directly onto the lashes. It is to be use underneath mascara and alone overnight. It is a lot cheaper compare to Latisse (which claims to also make your lashes longer), this is price at around $13. This would be awesome if it works and I am curious.