Toughen up your nails with a crisp white nail strengthener from OPI’s Nail Envy, a vegan formula that reinforces and protects nails with layer-building strength....
Say hellooo to the next generation of Nail Envy® nail strengtheners, now with Tri-Flex Technology™, a liquid shield that reinforces the nail with layer-building strength....
Convenient and gentle 3 in 1 formula! Formaldehyde-free Base Coat, Top Coat, and Nail Strengthener.How to thin OPI Formaldehyde Free Nail Strengthener?
OPI suggests the use of OPI Nail Lacquer Thinner. OPI Lacquer Thinner is designed to bring polish consistency back to normal by replacing evaporated solvents.