OPI

OPI Nail Envy Nail Strengthener, Clear & Opaque Crème Nail Polish Treatment with Vegan Formula to Strengthen Weak & Thin Nail

★ 4.2 / 5 ★★★★☆ on Amazon · 14,683 ratings

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Reviewed 16 August 2026 · price checked live

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Overview

We track OPI Nail Envy Nail Strengthener, Clear & Opaque alongside 29 other manicure & pedicure products, comparing it on rating, how many people have rated it and what it currently costs. According to the listing: This nail strengthener is proven to reinforce nails up to 95% stronger in 1 week - strengthens & protects against chipping, peeling & splitting for healthy-looking nails. Formulated with Tri-Flex Technology, a liquid shield that reinforces nails with layer-building strength. Those are the seller's own claims rather than our testing, so treat them as a starting point. On Amazon it holds 4.2 out of 5 from 14,683 ratings. What that score is worth next to its rivals is set out below.

How it compares in Manicure & Pedicure

Across the 30 rated manicure & pedicure products we track, the typical score is 4.4 out of 5. This one sits at 4.2, which is in the bottom quarter of the category. That does not make it a bad buy, but there are better-rated alternatives on the same shelf, so it needs another reason to earn your money.

It carries 14,683 ratings against a category median of 11,742. That is enough of a base to take the score seriously without treating it as settled.

On price it sits in the upper third of a category running from £2.99 to £18.40, where the midpoint is about £6.99. Paying above the category norm needs a reason beyond the rating, because the score alone does not justify the gap here.

Worked out from the 30 manicure & pedicure products in our catalogue, not from the brand's own claims. How we rank →

Key features

• NAIL TREATMENT: This nail strengthener is proven to reinforce nails up to 95% stronger in 1 week - strengthens & protects against chipping, peeling & splitting for healthy-looking nails
• STRONGER NAILS: Formulated with Tri-Flex Technology, a liquid shield that reinforces nails with layer-building strength
• NAIL CARE: Infused with vitamins A, E, C, Biotin & Calcium for nails to envy - with OPI Pro-Wide nail polish brush for smooth, even coverage without streaking or bubbling
• HOW TO USE: Use as base coat or apply 2 coats to bare nails followed by an additional coat daily - remove on day 7 if desired - the perfect self care for your nails
• OPI: For salon professionals & home treatment, for bold colour & nailcare - give the perfect birthday present, stocking filler gift or indulge your own nails

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