Search  for anything...
OPI

OPI Repair Mode Bond Building Nail Serum | Keratin Protein Nail Strengthening Treatment | For Stronger Nails & Nail Growth

  • Based on 4,904 reviews
Condition: New
Checking for product changes
$19.98 Why this price?
Save $5.01 was $24.99

Buy Now, Pay Later


As low as $4 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, May 30
Order within 14 hours and 21 minutes
Available payment plans shown during checkout

Brand: OPI


Item Form: Liquid


Liquid Volume: 0.3 Fluid Ounces


Specialty: Protein, Repair


Number of Items: 1


Language ‏ : ‎ English


Product Dimensions ‏ : ‎ 1.88 x 1.34 x 5.17 inches; 2.4 ounces


Item model number ‏ : ‎ 99399000051


Manufacturer ‏ : ‎ OPI Products Incorporated


Country of Origin ‏ : ‎ USA


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 30

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • THIS ACTUALLY WORKS!!!
Ok let's face it. I was totally skeptical that this would repair nail damage. I mean come on. How many times have we purchased something, only for it to wind up in the trash and the money down the drain. THIS STUFF WORKS!!! I damaged one of my nail bed with years of acrylic, gel and nail "Dip powders" pretty severly. Half of the nail grew at a normal rate and the other half did not. It also had a vertical crack that would not quit, and caught on everything. It was very painful. I had given up. I have been using this for about a month at this point. The nail is growing at a more normal rate. The overall split is virtually gone. I do still have a small divot in the tip of the nail, but it is no longer an actual split in the nail. Just a spot that grows a little slower. I had 2 other nails that were beginning to grow unevenly and they are fixed. I am a daily user of this product. No, I do not know what will happen if I stop using it. I don't think I want to find out. ... show more
Reviewed in the United States on May 2, 2025 by Amy Battles

  • Try it!! You will not regret it
Love this & it works so well. I had very weak nails- split, break & peel. I have never had acrylic nails or any other product on them ( that this product is made to help). However, I started using it twice a day on bare nails & gave continued to do so for months now. Within 1 month of using my nails had gotten stronger. They no longer peel or split. They only break occasionally when I hit them hard against something. This product is AMAZING!!! ... show more
Reviewed in the United States on March 28, 2025 by cynthia a.

  • Great Strengthening Serum!
The media could not be loaded. 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) 😖. 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 🫙 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-💅🏿 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 💰, 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 📸 😆 😃). 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! 🌟 ... show more
Reviewed in the United States on February 21, 2025 by Kameelah Kameelah

  • Nail repairer
Goof but alittle to strong for my nails
Reviewed in the United States on April 28, 2025 by Judy mastrullo

  • It really does help! Highly recommend
My nails were BAD!! I think I had a reaction to some glue that I was using because I had only used it for a few weeks & my nails were worse than when I used to get my nails done at a salon for months at a time. I was looking for something to help heal my nails as they were horribly thin & breaking below the quick. I chose this one because the first review I read said it helped with splitting nails. Both of my middle fingernails split directly up the middle. They have been doing this for a couple years(I have no clue why). This stuff has been amazing! It may seem expensive, but I have been using SEVERAL times a days for a few months & I haven’t even used half the bottle. Are my nails strong & long yet? No, but they were extremely damaged when I started & I am very pleased with the progress. They do not split in the middle nearly as bad & my nails are definitely thicker. I have recommended this to several people & I will continue to use it long after my nails have healed. ... show more
Reviewed in the United States on February 27, 2025 by M. Kelly

Can't find a product?

Find it on Amazon first, then paste the link below.