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๐ Unlock your nailsโ full potentialโstronger, smoother, unstoppable!
OPI Repair Mode Bond Building Nail Serum uses patented Ulti-Plex Technologyโข to rebuild nail keratin bonds from within, delivering 99% repair and 4x stronger nails in 6 days. Its vegan, cruelty-free formula protects nails from damage caused by everyday activities, while providing visible improvements in strength, smoothness, and resilience. Ideal for professionals seeking durable, healthy nails with a quick-dry, long-lasting treatment.






















































| ASIN | B0BXFM8CWF |
| Best Sellers Rank | #4,373 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #12 in Nail Strengtheners |
| Brand | OPI |
| Brand Name | OPI |
| Customer Reviews | 4.2 out of 5 stars 7,407 Reviews |
| Item Form | Liquid |
| Item Type Name | Nail Treatment |
| Item Weight | 0.02 kg |
| Liquid Volume | 0.3 fluid ounces |
| Manufacturer | OPI |
| Manufacturer Part Number | NT200 |
| Model Number | 99399000051 |
| Number of Items | 1 |
| Size | 0.3 Fl Oz (Pack of 1) |
| Specialty | Protein, Repair |
C**P
Great for nails wrecked by gel manicures
**Update: it's been over 6 months and now I use this every polish change. The results are just unbelievable. I can go without polish, and my nails grow long and strong! It's the first time in my life I can say that. I now combine with hard as hoof cream and regular cuticle oiling and can't say enough great things about how much this has transformed my nails. No more soft spots or bending. Background: 11 years of gel manicures, occasional dip manicures, press-ons, and a recent run of semi-solid gel strips left me with brittle, split, ridged, and overall damaged nails. I almost never have taken a break between polish changes during that entire time. I was using Gemini AI to help come up with a plan to heal my nails, and one recommendation was this product + Nail Envy. I diligently applied this twice a day for 6 days, even taking it with me while traveling. It is a great way to do a forced reset, since you must apply this on bare nails. Day zero before applying I soaked my nails in warm water + olive oil, and I did this again on day 6 before my last dose. I did a full manicure on day 6, cleaning my cuticles with a glass cuticle stick, shaping nails (filing only in one direction!) and gently buffing. My nails looked so much better. My photo is the "before" from the manicure and it is hard to describe what an improvement this is from day 0 (even if it doesn't look like it). I didn't experience any of the nail lifing some people online describe with this product, and overall my nails seemed much more firm with less peeling. I do still have two nails which seem a bit soft in localized spots, so I'm going to get an ISDIN product with silica in it to see if I can correct that while they continue to grow out. I've applied Nail Envy in my "after," and although I don't like the nude color very much I do feel that overall the combo is helping my nails! I'm nervous not having the strength of a gel manicure, but will have to use gloves during dishes and stop using my nails as tools to try and keep them from breaking while they grow out. I'm going to try to go 6 months without gel using Repair Mode weekly with clear Nail Envy polish to recover from all of this damage. I blame myself because I'm not very patient with removing gels and press ones, so most of my damage is from pulling-trauma and acetone. I'm just so glad there is something out there to help my nails recover quickly!
T**S
Buy it! I need a second bottle
I absolutely love this serum. I had acrylics and of course my nails were extremely damaged after. I was using this daily after and it really helped strengthen my nails. It takes a while for the nail to grow out but the damaged part of nail is strong and not bendy because of this. Iโve hit my nails on stuff and I get no breakage . This has never happened before. You can see at the tip of my thumb were the damage is at this point but again my nails are so much stronger!
S**T
Fantastic! 1st time in my long like my nails are strong.
Edit: At first I was very disappointed with this product. I used it two a day, my nails kept breaking, even though they seemed to be getting stronger. Finally one day I clicked. I actually had to trim my nails because they were foo long. I couldnโt believe it. The 1st time ever, and Iโm 60+. Even well into post menopause my nails are finally fabulous. Strong, hard and even a crack that had run through on nails forever is gone. Still working on another, but itโs healing up nocely. With the cost. Try it. Youโll like it. Just remember to wait a few weeks before you you give feedback. Iโm on my 3rd bottle.
A**A
Title (English): Stronger Nails with Visible Improvement
I've been using this nail serum for a couple of weeks, and I can already see some improvement. My nails feel stronger and don't peel as easily as before. The serum absorbs quickly and isn't greasy, which makes it easy to use during the day. The only reason I'm giving it four stars instead of five is that I expected faster results for the price. Overall, it's a good product, and I would continue using it.
K**H
Great Strengthening Serum!
I've tried various products to strengthen my nails, particularly my left middle finger due to nail splitting all the way down to the matrix from over washing my hands due to my occupation. When i say I've tried a plethora of products, i am not exaggerating! Various nail hardeners, oils, biotin supplements, zinc, collagen peptides, gel powders, and even nail avulsion (total nail removal) ๐. I began using this product about six months ago, and noticed a wonderful difference in my nails! They are much stronger, healthier and I do not have to use any nail hardener. I apply in the morning and before bed. I do admit that although it has bot completely repair my split nail (you can see in the picture and video) it does make it much more manageable and I keep it filed very short. You can see how my nail was before I began using this serum in the last photo and how split it was. My nails look clean and I also apply either Dadi's Oil afterwards or Healthy Hoofs nail balm, also available on Amazon. I still take vitamin supplements along with collagen peptides, but I do believe this serum helps significantly. One bottle ๐ซ lasts me about 6 to 7 weeks, and that is with application on all of my nails. I am amazed by how quickly my nails dry - in mere seconds-๐ ๐ฟ and how I could apply my nail balms and cuticle oils immediately afterwards. It took about 2 weeks for me to see some improvement and about one to two months to see a sustained response. Some folks complain about the price ๐ฐ, but honestly, I believe you get what you pay for and you can't place a value on your health! I still feel it is very economically priced given all of its benefits and duration of use. I have recommended OPI Repair Mode to others, including my hand surgeon and I believe she has recommended to her patients as well (after she saw my before and after picture ๐ธ ๐ ๐). I say give it a try and if it works for you, then great, and if not, at least you tried it for yourself, but I honestly believe most folks will be pleased with the results! Thanks for taking the time to read my review! ๐
J**E
Doesnโt seem to work
I donโt think it did anything. I used it twice a day for 8 days and this is my before and after picture. Maybe the nail damage is too great to help it, but for $25 I wasnโt impressed. Picture on the left is before and right is 8 days later.
C**L
Stops nails from peeling!
I love this! My nails peel, and I have tried all sorts of things over my 60+ years. This is definitely my favorite. It isn't a polish - it soaks in and doesn't build up. When I started, my nails were peeling beyond the quick - it was bad. I used it nightly, and the peeling stopped quickly. Once the peeling part grew out, my nails looked great! I am on my 4th bottle; I just brush it on at bedtime. I have recommended it to a few friends - they also love it. Now, I actually have to file my nails because they get too long! I hope OPI never stops making it!!
L**E
Not Sure About the Science, But I Keep Repurchasing
Iโve been trying to repair damage from years of gel nails and this has become part of my nightly nail routine. Iโm still a little on the fence about whether it truly โbuilds bonds,โ but this is already my second bottle so I clearly think itโs helping somewhat ๐ I generally trust OPI products because they usually make quality nail products. I use it at night instead of twice daily like directed because I wash my hands constantly working in nursing and morning application feels wasteful for me. It dries quickly, hasnโt irritated my super sensitive skin at all, and my damaged nails do seem to be improving over time. Iโm not sure I confidently recommend it because I honestly donโt fully understand how effective the ingredients areโฆ but apparently Iโm repurchasing anyway.
I**A
MEJOR PRODUCTO PARA UรAS FRAGILES Y DAรADAS
Comprรฉ este producto la semana pasada porque despuรฉs de la รบltima retirada de semipermanente que me hice notรฉ que mis uรฑas naturales estaban sรบper frรกgiles y daรฑadas, hasta el punto de que me dolรญa horriblemente a la hora de hacer cualquier cosa con ellas. Me hago yo misma la manicura en casa y hace poco probรฉ a usar unas uรฑas postizas, ha sido lo peor que he podido hacer en este mundo... despuรฉs de quitarme las postizas, el pegamento me dejรณ las uรฑas horribles y me dolรญan mucho, asรญ que probรฉ a usar builder gel para protegerlas y ya no me dolรญan. Cuando pensรฉ que me habรญan crecido lo retirรฉ completamente y seguรญan mis pobres uรฑas naturales fatal. He probado bastantes productos que dicen endurecer o mejorar la uรฑas natural pero ninguno igual a este. Con la primera capa que me puse pude notar la diferencia... mis uรฑas pasaron de estar sรบper dรฉbiles y que dolรญan solo con verlas a poder tocarlas y sentirlas mรกs fuertes. Solo con el primer uso me sorprendiรณ porque ahora podรญa limar mis uรฑas naturales sin llorar del dolor. Ahora llevo ya usรกndolo durante los 6 dรญas que promete que hace efecto, siguiendo las instrucciones de ponerlo 2 veces al dรญa y sin duda mis uรฑas estรกn maravillosas y mรกs fuertes que nunca. Sรบper bueno el producto, es el mejor en el mercado ahora mismo y por lo que tengo entendido OPI tiene la patente, asรญ que es el รบnico en el sector con esta forma reparadora. Por lo que he podido leer, el producto actua en tu uรฑas creando mรกs uniones entre las cรฉlulas con keratina y vitaminas. De esta manera se incrusta en tu uรฑa, no es solo una capa protectora que se pone encima y hace de escudo, este producto penetra en tu uรฑa y la hace mรกs fuerte en su composiciรณn natural. Increรญble!! Ademรกs, es sรบper fรกcil de usar y de poner, es un pincel sรบper fino que ayuda a llegar a todos los rincones y se seca rรกpidamente, en menos de un minuto ya estรก seco y puedes seguir con tu vida normal. No es nada pegajoso ni nada, es perfecto y da un resultado maravilloso!! Por lo que tengo entendido puedes ponรฉrtelo como primer antes de la base para la manicura semi y seguirรก teniendo efecto. Tambiรฉn he visto que puedes aplicarlo en tu uรฑa a medida que va creciendo como si fuera aceite de cutรญcula para que la nueva uรฑa que crece estรฉ fuerte!! Es lo mejor del mundo y lo recomiendo 100%!!!
K**K
It really works. Nails definitely stronger
I have tried so many nail repair serums. This one is great it absorbs into the nail quickly. It does take a couple of weeks to notice the difference but with consistent use it really works.
T**R
It works
I waited to review this product after using it as per instruction,and waiting for my nails to grow It really works, my nails are strong I like that it is colourless and dries quickly with no smell Worth the money , especially as I donโt need to use it everyday now
G**A
Unico prodotto davvero valido
Un prodotto ottimo, sono senza parole, davvero funziona. Avevo le unghie sfaldate dopo mesi di gel e dopo solo due settimane di applicazione noto una differenza enorme. Consiglio!
B**Y
Works But Temper Expectations
This product works but takes time to work. Painting nails in between application did not yield positive results, it dried my nails, mostly just peeled off and some nails separated from the bed - not the fault of the product just to be clear. I expected to get strong and hard nails which didn't happen. I have long very bendy and flexible nails. It does stop my nails from the layers splitting and peeling - yay! The corners, especially prone to peeling, no longer split, peel or separate so don't get caught on things causing them to rip. Given nails grow 3 mm per month and the nail being 10 mm it takes about 3 months to cover new growth. I'm guessing I'll have to buy this for the rest of my life to keep the nails from peeling. Worth it IMO.
Trustpilot
1 month ago
3 weeks ago