Yes, Plume Science is a legitimate company known for their Lash & Brow Enhancing Serum. This product is designed to help grow thicker eyelashes and eyebrows. It is made with a 100% natural ingredient formula. The serum works by locking in keratin, moisture, and vital nutrients, keeping hair follicles in the growth phase for longer, and protecting from environmental harm and breakage. The company has obtained a patent for their hair enhancement technology, which they feature in every one of their products. All ingredients are sourced sustainably and from natural and organic sources whenever possible. The company's products have received positive reviews online.