Start To Finish
Start To Finish
Formaldehyde-Free Formula
- 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.

All You Need in One
3 in 1 treatment: This small but mighty bottle packs a punch, our OPI Start To Finish Formaldehyde-Free Formula acts not only as a base and top coat, but also as a gentle nail strengthener too.
Complete Nail Care
Like many of our other nail strengtheners, OPI Start To Finish Formaldehyde-Free Formula provides maximum strengthening with hydrolyzed wheat protein and calcium for harder, longer, stronger, natural nails.


How to Properly Apply Nail Polish
We love nothing more than a fresh mani, but there are a few key steps to ensuring your nails are looking their best even when you don’t have time to run to the salon.