Nail Polish Base Coat bottom layer to protect the natural nail whilst assisting in long term colour adhesion. Sienna Byron Bay strives to be as eco-friendly as possible. Their Australian made nail polish is produced using a professional, reduced toxin formula that is as clean as you can get. Sienna use only Cruelty-free, Vegan components. They use locally milled, sustainable timber, to do away with the traditional plastic cap. Their Soy based remover comes from 100% renewable sources.