I’m being haunted by a seahorse. Ever since I saw Justin Hofman's viral photo of that sad little ocean pony clinging to a plastic cotton swab, I’ve been aware of just how much plastic waste my beauty routine creates. Since the advent of plastics, humans have made 8.3 billion metric tons of the stuff. Of that, 6.3 billion metric tons have already been thrown out and 91 percent of that waste has not been recycled. I’m just one person contributing to a garbage mountain that threatens to suffocate the planet. So when Allure asked me to try a sustainable beauty routine with no single-use plastic, I was all in — as long as it wasn’t too hard.