OPI Repair Mode Bond Building Nail Serum — Strengthening Keratin Treatment, Clear 0.5 fl oz

OPI Repair Mode Bond Building Nail Serum rebuilds and strengthens the nail from within using patented Ulti-Plex Technology™ to restore keratin bonds and reduce breakage.

Designed to target weak, brittle nails, this serum works beneath the surface to reconstruct the nail’s internal structure. Instead of only coating the nail, the formula penetrates to form new internal links, improving texture, resilience, and overall appearance with repeat use. Fast-acting results are visible after the first application, and continued use promotes noticeably stronger, smoother nails.

How does the serum rebuild nails instead of just masking damage?

OPI’s Ulti-Plex Technology™ is formulated to penetrate the nail plate and help re-establish keratin connections inside the nail. That internal repair differs from surface treatments by addressing the cause of brittleness and splitting, not only the symptoms. Over time, nails develop greater structural integrity rather than a temporary shine.

• Patented Ulti-Plex Technology™ penetrates the nail plate
• Targets keratin structure to form new internal bonds
• Visible improvement after first use with progressive strengthening

What practical benefits will I notice and how fast?

Users typically see improved smoothness and reduced surface ridging after the first application. With continued daily use, nails become more resistant to chipping and breaking and can become up to four times stronger within about a week when used as directed. The serum also helps improve the appearance of discoloration and uneven texture.

• Noticeably smoother nails after one application
• Up to 4x stronger nails in six days with directed use
• Helps reduce ridges and color irregularities over time

How do I incorporate Repair Mode into my routine?

Apply the serum to clean, dry nails once daily following package instructions for best results; it layers easily under polish or can be used alone. Regular application ensures the technology continues to rebuild internal bonds and provides ongoing protection from everyday stresses such as washing and household products. The cap is made with post-consumer recycled (PCR) material, reflecting a small sustainability consideration in the packaging.

• Use on clean, dry nails once daily as directed
• Can be applied under polish or by itself
• Cap uses PCR material for reduced environmental impact

Is this formula safe for people who prefer vegan products?

Yes. The serum is formulated without animal-derived ingredients or by-products, making it suitable for vegans and those seeking cruelty-conscious options. While not a medical treatment, it focuses on cosmetic nail repair and strengthening through its proprietary technology.

• Vegan formula—no animal-derived ingredients
• Not intended as a medical or drug treatment
• Helps protect against common daily damage when used regularly

Who is this for: OPI Repair Mode Bond Building Nail Serum is ideal for people with weak, brittle, or peeling nails who want a targeted, cosmetic repair solution. It suits polish wearers and those who prefer a clear-strengthening treatment, plus anyone seeking a vegan-friendly nail product that focuses on rebuilding nail structure rather than only masking surface issues.

Key product 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.