Nail Envy is OPI's long-running nail strengthener line. The current generation is built on Tri-Flex Technology, offered in a clear original shade plus tinted color-strengthener variants; several older pre-2023 condition-specific formula variants have since been discontinued.
Nature Strong is OPI's vegan skincare sub-line for nails, cuticles, hands and feet, built around MoodBloom Scent Technology and majority natural-origin formulas. Every product in the line is marketed vegan and cruelty-free.
GELement is OPI's at-home gel nail system: a base coat and no-wipe top coat formulated with balanced viscosity for strong color adhesion, cured under a UV/LED lamp.
Infinite Shine is OPI's long-wear nail lacquer system using pre-cured gel technology to deliver gel-like wear and shine without a UV/LED curing lamp, removable with ordinary acetone.