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💅 Fortify your nails with diamond power — because your hands deserve the best!
Sally Hansen Diamond Strength Nail Hardener features a cutting-edge micro diamond and titanium formula enhanced with platinum, delivering up to 10 days of durable protection against nail breakage. This clear, glossy base coat strengthens brittle nails by sealing fragile layers with a nearly shatterproof shield, all while drying quickly to a salon-quality finish. Trusted since 1957, it’s the go-to solution for professionals and nail enthusiasts seeking resilient, beautiful nails that stand out.
| ASIN | B003VDCF2Y |
| ASIN | B003VDCF2Y |
| Additional Features | Quick |
| Age Range Description | Adult,Kid |
| Best Sellers Rank | #1,602 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #5 in Nail Strengtheners |
| Brand Name | Sally Hansen |
| Color | Diamond Strength Hardener |
| Container Type | Bottle |
| Customer Reviews | 4.5 4.5 out of 5 stars (6,177) |
| Finish Types | Glossy |
| Included Components | Top Coat |
| Is Discontinued By Manufacturer | No |
| Item Dimensions | 2.87 x 1 x 5.5 inches |
| Item Form | Liquid |
| Item Weight | 0.01 Ounces |
| Item model number | 30006207000 |
| Manufacturer | Coty Beauty |
| Manufacturer | Coty Beauty |
| Manufacturer Part Number | 074170342215 |
| Material Features | Nail Hardner |
| Model Name | Diamond Strength Instant Nail Hardener 0.45 Fl Oz |
| Model Number | 30006207000 |
| Nail Polish Type | base |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Product Benefits | Strengthens and protects nails from breakage |
| Product Dimensions | 2.87 x 1 x 5.5 inches; 0.01 ounces |
I**L
Sturdy, Strengthening Nail Hardener That Works
I’ve been using Sally Hansen Diamond Strength Nail Hardener (0.45 fl oz) for a few weeks, and it’s quickly become a staple in my nail kit. The clear coat goes on smoothly and dries to a glossy finish—my nails look polished and healthy even before applying color. After every use, my nails have felt noticeably stronger and more resilient. What really stands out is how it helps prevent splitting and peeling. I work with my hands often, and since starting this treatment, my nails rarely show wear or damage. A small bottle lasts a long time, and it’s easy to add between manicures or wear alone. For anyone battling weak, brittle nails, this hardener delivers noticeable strength without being stiff or thick.
E**E
(Dont mind my uneven nails trust the process)
LOVE!💕 Not only is the bottle cute the product is amazing. Honest. I saw this on pinterest and my nails can grow long but they're prone to breaking easily so i got this and its my holy grail now it hardened my nails so quick i mean in under a minute and the shine effect has afterwards is cute! Its a good price and a little goes a long way! Its not thick but also not too watery easy application and its not greasy when its on! For a moment it has a regular nail polish smell but then it immediately goes away when its dries 10/10 i dont see how this isn't more popular but im glad its not lmao
U**U
Excellent: Protects, Strengthens & Shines
Goes on smooth, layer dries quickly, nails sturdier/stronger & smoother looking. Has a glossy finish. Purchased again due to brittle weak breaking nails. It has protected with just 1 coat. I've decorated on occasion with other colours & stickers. It kept things fresh & intact longer. It comes off with an inexpensive nail polish remover. I didnt get paid for this review. No one offered me anything. And, I don't want anything for my review. (Perhaps if others stop paying for them their products would cost less...) This wasnt a vine purchase. I not only bought here, I have purchased it off/on for many years from local stores. I'm glad to say it has consist quality unlike other things. It dries faster then yrs ago. The price did go up & wish it was lower but it does what's expected. I'm glad they didn't offer a bribe for my review. I will continue using it.
V**A
Helps nail strength
Really helped to give a smooth finish. Rated excellent on YUKA app. I have replaced all nail products for better items. I would give 5 stars but I have issues with the bottle. Solid surface means you can't see level of polish to dip. Shape of bottle not stable so has a tendency to tip. Like it enough to transfer to a clear more rounded bottle. A wider brush would also be helpful. My nails have improved so much the ridge splits are almost filed off.
L**D
Hardens nails and causes nail growth.
I have always used Sally Hansen products. This hardens the nail , protects so nails can grow. I also use Miracle Nail Growth & Vitamin E by Sally Hansen. I cut by nails off to start fresh new growth. It does work.
B**S
Mail hardener
Excellent product. My nails were always chipping and splitting,the first time I used this they felt stronger. No more salt nails!
A**A
Don't my your nails strength
Not with that , I was expecting , it's okay
K**.
Best on the market, I promise!
Best clear nail polish ever! Strengthens yoyr nails. Easy application, goes on like regular nail polish. Doesn't smell weird either. Very good quality. You can make a mistake and it would magically fix it. It does bring out any color. I always recommend this product when I'm shopping at wally world. I was just being lazy and didn't feel like going there since it's packed with people for the Holidays.
A**R
It’s good product
C**L
Great product.I have used this before and it makes your nails much stronger.I used to bite my nails for years and now I don't anymore.But this product makes my ugly nails look better and cooler. Any Sally Hansen nail product is a sure winner! Your nails also look shiny after you apply this so they look classier too.
M**9
Excellent product, have been using for many years. Strengthens nails after many years of acrylic nails.
D**N
My nails were very weak after acrylics and its been two weeks and this has helped them grow while avoiding damage. It helps harden the nail a bit to prevent bending or chipping from their weakness! Love it!
D**I
En cours d'utilisation. Assez satisfaite. Encore des ongles cassés faut du temps....
Trustpilot
2 weeks ago
2 days ago