Shark Tank (2009)

S7E18 Episode 18

A 16-year-old environmental advocate presents her innovative solution for eliminating plastic bottles. Meanwhile, a former soap opera antagonist seeks to partner with the sharks to promote her fashionable one-piece swimsuit designed for sun protection. Two entrepreneurs introduce an app that curates workout playlists tailored for the average user. Additionally, a man vows to uncover the unpleasant truths hidden within your mattress. The episode also revisits Signal Vault, a product that shields customers from crowd-hacking threats, which received investment from Lori Greiner and Robert Herjavec in Season 7.