This base coat is designed to stick to your natural nail and give added support to your nail polish when its applied. It also looks incredible as a clear coat, naturally! They don’t call it a ‘cult favorite’ for nothing! Sienna nail polish is proudly ethically made in France, certified vegan & cruelty-free, water permeable and breathable. Natural ingredients Derived from Sugarcane, Cassava, Cotton and Corn. Innovative, cleanest formula possible The exclusive formula is a world first with no nano-particles, no aluminium, no micro plastic, no benzophenone 1 and none of the standard toxic ingredients everyone says no to! World friendly products From natural ingredients to the organic timber on the bottles; everything is made to be as environmentally friendly as possible. Customer verified Over 1800 5-star reviews.