There are no comprehensive lists of all synthetic polymers that can be considered as microplastic ingredients. Up until 2019, our campaign was based on research conducted and published by UNEP and the Belgian Tauw. Today, with the restriction proposal by the European Chemical Agency (ECHA), we have come across more than 550 microplastic ingredients widely used in cosmetics and personal care products. This information can be quite daunting, which is why we created four product categories: Red, Orange, Green, and Zero.