Brittle nails, often caused by aging, medical conditions, or frequent exposure to harsh chemicals, can be a persistent frustration for many. However, shoppers have discovered an affordable solution that promises stronger, healthier-looking nails in just seven days. The OPI Nail Envy Nail Strengthener, now available with a 20% discount using code treat20 until May 31 at 11:59 PM, has become a go-to for those dealing with post-gel damage, medical-related brittleness, and more.
A Revamped Formula for Enhanced Strength
OPI's cult-favourite Nail Envy has recently received a major upgrade, earning the title of the "new OG" among nail strengtheners. The updated formula is now vegan and incorporates advanced Tri-Flex Technology, which creates a liquid shield over the nail to reinforce its surface and build strength layer by layer. This innovation is particularly beneficial for nails prone to chipping, peeling, or splitting. Additionally, the formula is enriched with biotin, vitamins A, C, E, and calcium to nourish and protect nails, with claims of achieving 95% stronger nails within a week.
For those with more severe damage, OPI recommends pairing Nail Envy with their Repair Mode bond-building nail serum. Using Ulti-Plex Technology, Repair Mode penetrates the nail to rebuild keratin structure from within, offering up to 99% keratin repair after consistent use. The recommended routine involves applying Repair Mode twice daily for six days to target deeper damage, followed by daily application of Nail Envy for six days—two coats on the first day and one coat on subsequent days.
Colour Options and Pricing
While the OPI Classic Nail Envy Nail Strengthener in Sheer Colour offers a natural look, the formula is also available in six new colours, ranging from sheer pinks to deeper tones like red and navy, ensuring that manicure enthusiasts don't have to sacrifice nail health for style. Originally priced at £23, these strengtheners are currently reduced to £16.10 for a limited time.
For those seeking alternatives, LookFantastic offers the Manucurist Active Smooth 00 15ml for £16, a perfecting nail polish enriched with castor fibres, hexanal, AHAs, and vitamin E. Meanwhile, Dior provides the Dior Base Vernis for £30, designed to strengthen and harden nails while ensuring a flawless finish.
Customer Reviews and Experiences
OPI's Nail Envy has garnered a 4.3-star rating from over 900 reviews. One customer shared: “I have weak, brittle nails which tend to peel at times. This product made my nails look and feel stronger. I hate the appearance of my nails and usually cover them with coloured nail polish. This polish gives a slight pink tint to the nail so I felt comfortable with my ‘bare’ nails.”
Another added: “I absolutely love this product. I’ve always struggled to grow my nails without breakages and this product is just perfect to strengthen your natural nails. It enhances growth and creates such beautiful and salon-perfect nails.”
Even those with medical reasons for brittle nails have found relief. One reviewer noted: “My chemotherapy treatment has left me with brittle nails that split easily. OPI Nail Envy seems to be helping.” Another said: “My nails were badly damaged after gel nails (I'm on blood thinners), and the nail bed was bruised, and the nails broke at the slightest touch. Nail Envy strengthened them within a week.”
However, not all feedback has been positive. Some users found the application challenging, with one three-star review stating: “Very thick and doesn't go on your nail smoothly and shows brush marks.” Yet, another customer countered: “OPI just doesn’t disappoint! This nail strengthener glided on seamlessly and stayed on for ages. The pink sheen made the tips look elegant and classy all while strengthening the nails.”
For those whose nails are constantly breaking, this affordable treatment offers a low-effort alternative to gels or acrylics. With the code treat20, shoppers can save 20% on the price until May 31, 11:59 PM.



