OPI Repair Mode Bond Building Nail Serum, Keratin Protein, Repaired Nails in 6 Days, Vegan Formula, Clear, 0.3 fl oz
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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
Meet the first ever bond-building nail serum with Patented Ulti-Plex Technology™ that penetrates the nail surface to build new bonds from within. The result? 99% nail keratin repair* and stronger, smoother nails. Mic drop.
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Top Reviews
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SN
2025-01-12T00:00:00I have decent fingernails but occasionally one or two will peel, or be weaker than usual. If I use this on my bare nails for a few days in a row, it completely mends the nail. I’ve tried many strengthening polishes and never had one work as it promised. This soaks into the nails and they get stronger. I always put it under my base coat of my manicure. And if a nail starts feeling like it’s peeling, I stop the nail polish and use this for a week, and then it mends and I can go back to just under my manicure once a week or so. -
JMLH
2025-01-03T00:00:00My nails were a MESS! After all the hand sanitizer etc of covid days, my nails Never did recover. They went from long and strong to short and peeling. I even went to a dermatologist wondering if i had fungus or another issue. She told me age can cause nail damage...yea, $80.00 for that ridiculous diagnosis. I decided to try removing the polish and do daily warm oil treatments and use this. Less than 2 months later, my nails look better and on the way to recover. The tips peeled off little by little but now I do not see the peeling as before. This is slow going but I am seeing improvement. Still doing warm oil, no polish and use this daily though it was not advertised as a long term thing. My nails were really bad. I plan on doing this until they are back to normal, guessing another 3 months. Oil soak is jojoba and Tea tree oil so nothing crazy. -
Amy H.
2025-01-03T00:00:00This stuff is amazing. I have tried a few different things, including Opi's Nail Envy (did nothing). This stuff works so well. My nails are dry, peel, have ridges and just generally weren't looking good. I started to use this monthly for a week at a time, as well as cuticle oil daily and they are so healthy now! I still have ridges and some peeling from hormonal inconsistencies, but overall this has been great. I especially love using it in the mountains while skiing - my hands get so dry with the altitude, cold and gloves on and off. This keeps my nails from peeling and breaking too much while I'm there. 100% recommend. It's expensive, but I use it a week a month (at least), including maybe every other month on my toes, and this bottle lasts for a year. I stocked up on prime day this year. -
Norah
2024-12-29T00:00:00After two weeks of use, the main thing I noticed was that a split area of my thumbnail had actually grown out past the split. The safety/toxicity of the main ingredient is in question, but I will continue to use the OPI Repair Mode Nail Serum until the bottle is finished. -
J. Teague
2024-12-23T00:00:00I had gel nails for about two years. When I quit and when back to natural nails, my nails were awful. They were peeling and splitting and wouldn't grow out no matter how much I cared for them. One year after I quit gel nails, I was still dealing with peeling nails-even though my nails before I started gel nails had always been nice and strong. I tried this product but was not very hopeful. Although it took more than 6 days for me-within 2 weeks my nails were significatly better. Now, after a month of using this product at least once a day, I actually have some nail growth and the peeling has almost completely disappeared. I am very happy with this product and would most definitely recommend it for anyone dealing with peeling nails! -
JaLo
2024-12-19T00:00:00I had gel nails for my wedding, and I wore them for a couple of months as they were growing out. When they were removed, my nails were completely damaged and I knew it would take at least six months to grow out. I purchased this product as a recommendation from my friend and it really did work. It seemed to fill in the cracks and ridges and keep my natural nails from peeling while they were growing out. It doesn’t fix everything and you’ll have to continually file down your broken nails. But it made them like 1 million times better than they did. I was so embarrassed before I bought this product! -
1 Savvy Shopper
2023-12-31T00:00:00I used to have beautiful, hard and attractive natural nails and thought they would always stay that way. Even when I went to the nail salons, I would bring my personal OPI products for them to use on my nails. However, I tired of the repeat visits because natural nail manicures didn’t stay on long and was envious of gel polish treatments that would keep up to 3 weeks or more, so I switched to gel manicures. -
Katherine Dienstbier
2025-01-05T00:00:00I love this product. I wasn’t sure if I’d like the serum formula but it was perfect! It soaks in fast so I can put it on then any cuticle oil or lotion and don’t have to worry about it smearing or chipping like a polish. I definitely wish it was less expensive but that’s par for the course with OPI. I’ll definitely be buying again when this one runs out! -
Danielle
2024-05-01T00:00:00I think this is an underrated product to some degree (about 4.1 stars as of now). It DOES work, but... not really in 6 days. That said, nail growth is so slow and small that it would be hard to tell if there was growth in 6 days. -
Ilaria
2025-01-08T00:00:00l’ho acquistato proprio perché post gel/acrigel mi sono ritrovata con delle unghie super sottili, dolenti, così fragili che si piegavano. è da qualche giorno che lo sto utilizzando insieme al nail envy di opi, la combo perfetta. -
Ingrid Estela
2024-12-10T00:00:00Compré este producto la semana pasada porque después de la última retirada de semipermanente que me hice noté que mis uñas naturales estaban súper frágiles y dañadas, hasta el punto de que me dolía horriblemente a la hora de hacer cualquier cosa con ellas. Me hago yo misma la manicura en casa y hace poco probé a usar unas uñas postizas, ha sido lo peor que he podido hacer en este mundo... después de quitarme las postizas, el pegamento me dejó las uñas horribles y me dolían mucho, así que probé a usar builder gel para protegerlas y ya no me dolían. Cuando pensé que me habían crecido lo retiré completamente y seguían mis pobres uñas naturales fatal. He probado bastantes productos que dicen endurecer o mejorar la uñas natural pero ninguno igual a este. Con la primera capa que me puse pude notar la diferencia... mis uñas pasaron de estar súper débiles y que dolían solo con verlas a poder tocarlas y sentirlas más fuertes. Solo con el primer uso me sorprendió porque ahora podía limar mis uñas naturales sin llorar del dolor. Ahora llevo ya usándolo durante los 6 días que promete que hace efecto, siguiendo las instrucciones de ponerlo 2 veces al día y sin duda mis uñas están maravillosas y más fuertes que nunca. -
Sonne
2024-11-06T00:00:00Produkt ist sparsam im Verbrauch und wirkt bei brüchigen Nägeln. Allerdings habe ich es mehrmals am Tag aufgetragen, was so lt. Beschreibung nicht vorgesehen war. -
Newhaven
2024-10-19T00:00:00This product is amazing. I have congenital conditions which have always impacted my ability to grow my nails. My natural nails grow heavily ridged, and are so thin it’s absolutely ridiculous. Even with consultant advice, a hair & nail balanced diet along with daily life long supplements including Biotin, Hyaluronic acid, Collagen, extra protein, etc., and applying the likes of Sally Hansen Hard As Nails and 101 other nail growth and strengthening products over 57 years of trying to grow myself a set of natural nails that I only wanted long enough to cover my finger tip and nail bed, I never managed it. My nails have continued to always grow ridged and of very poor quality, splitting or flaking as soon as any white growth was visible above a nail bed. Okay, I did work with horses for a lot of my life so that was hard on my poor nails but even so, everyone else I worked under the same daily conditions as I, but were blessed to not have my congenital issues, managed to keep their natural finger nails short but normal and healthy looking; miles away from my torn specimens, often tender because of exposed quicks after my weak nails would tear midway down its nail bed (ouchie), and my never ending fight with repeated infected hang-nails always adding to my agony.



