OPI Repair Mode Bond-Building Nail Serum — Keratin Strengthening, Vegan Daily Treatment

OPI Repair Mode Bond Building Nail Serum is a bond-building keratin treatment that rebuilds damaged nails from within for visibly stronger, smoother nails.

Engineered with OPI's Patented Ulti-Plex Technology™, this lightweight serum penetrates the nail plate to create new internal bonds, helping restore keratin structure and reduce breakage. It’s formulated to be part of a daily care routine: nails look better after the first use and continue to strengthen with regular application. The bottle features a recycled-cap design and a vegan formula without animal-derived ingredients.

How quickly will I notice stronger nails?

Many users report visible improvements after the first application and measurable strength gains over days when used as directed. The formula targets internal keratin bonds rather than just coating the surface, so results accumulate with consistent use.

• Improvement often seen after one application
• Up to 4x stronger nails within six days with continued use
• Designed for daily application as part of your nail routine

What does the Ulti-Plex Technology™ actually do for my nails?

Ulti-Plex Technology™ is a bond-building system that penetrates the nail to re-link keratin fibers rather than only forming a surface film. By rebuilding bonds inside the nail plate, it helps improve texture, reduce splitting, and support longer, less brittle nails.

• Penetrates the nail surface to rebuild internal keratin bonds
• Targets common damage from washing, cleaning products, and everyday wear
• Supports smoother nail surface and improved color appearance

How do I use this serum for best results?

Apply to clean, dry nails once daily or as directed by OPI. Use alone or under polish; the serum absorbs quickly and won’t leave a heavy residue. Consistent application is key to rebuilding keratin structure and minimizing future damage.

• Clean nails thoroughly before application
• Apply one thin layer to each nail daily
• Can be used under polish or on natural nails

Is this product safe and eco-conscious?

The formula is vegan and made without animal-derived ingredients. The cap includes post-consumer recycled (PCR) material, reflecting OPI’s steps toward more sustainable packaging. Always follow product directions and discontinue use if irritation occurs.

• Vegan formulation — no animal-derived ingredients
• Cap made with PCR to reduce waste
• Follow directions for safe, effective use

Who is this for? OPI Repair Mode Bond Building Nail Serum suits anyone with weak, brittle, splitting, or discolored nails who wants a non-invasive, daily treatment to improve strength and appearance. It’s ideal for people frequently exposed to water or cleaning agents, those recovering from damaged nails after enhancements, or anyone seeking a proactive step toward healthier natural nails.

Features:

• 99% nail keratin repair when used as directed
• 94% protection from damage
• 4x stronger nails in 6 days when used as directed
• Cap made with PCR
• Vegan formula, no animal derived ingredients or by-products

Ingredients

Alcohol Denat., Aqua/Water/Eau, Maleic Acid, 1,6-Hexanediamine.