Discover OPI's high-performance, naturally derived nail polishes with the limited edition OPI Nature Strong Duo. Containing a full-size polish in Natural Mauvement and a matching top coat, this set delivers up to seven days of wear and shine, and vegan formulas made of up to 75% natural origin ingredients. - OPI Nature Strong Duo includes:Nature Strong Nail Polish in Natural Mauvement 15ml - A pale mauve nail polish in OPI's Nature Strong formula. - A clear top coat to seal in colour and extend the wear time of your manicure. - OPI's Nature Strong Nail Polish range combines the same high performance and bold shade range you know and love with a new, naturally-derived formula. Nature Strong polishes are vegan, and made from up to 75% natural origin and 84% bio-sourced ingredients. The bottles and cap are made from 20% post-consumer recycled plastic.