OPI Nail Envy / Envy Original Nail Strengthener | Tri-Flex Formula

Strengthen and protect fragile nails with **OPI Nail Envy (Original / Envy)** — a professional-grade nail strengthener using Tri-Flex Technology™ to create a liquid shield that reinforces nails while helping resist chipping, peeling, and splitting. Infused with biotin, calcium, and vitamins A, C & E, this formula supports healthier-looking nails with regular use. 

Use it as a base coat, treatment, or standalone strengthening layer.