OPI Nail Envy Nail Strengthener 15 ml

Nail Envy is OPI's number one nail treatment. The clear formula contains hydrolysed wheat protein and calcium to help harden and strengthen soft, brittle nails, and it can be worn alone or as a base coat under colour.

Used every other day for a week, then removed and restarted, it visibly improves nail strength within weeks. The latest version is a tri-flex technology that balances strength with flexibility to resist breaking.

Apply two coats to clean nails, then one coat every other day; remove after a week and repeat. 15 ml.