OPI Nail Envy Nail Strengthener in the Dry & Brittle formula (NT131) is a moisturizing nail treatment specifically designed for dry, brittle nails prone to peeling, splitting, and breakage. Part of OPI’s best-selling Nail Envy treatment line, it hardens nails while keeping them flexible.

• Targeted for dry, brittle nails helps prevent peeling, splitting, and breakage
• Moisturizing formula with antioxidant vitamins E & C, calcium, and hydrolyzed wheat protein
• Visible results in about 1 week of regular use
• Wear it alone or as a base coat under your favorite OPI lacquer
• 0.5 fl oz (15 ml) glass bottle, made in the USA

How to use: Apply 2 coats on day one, then 1 coat every other day. Remove and restart weekly for best results.