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💅 Fortify your nails with diamond power—because your hands deserve the best!
Diamond Strength Nail Hardener by Sally Hansen uses a cutting-edge micro diamond, titanium, and platinum formula to instantly strengthen and protect brittle nails. Offering up to 10 days of durable wear, it seals fragile nail layers with a nearly shatterproof shield, reducing breakage, splitting, and tearing. A trusted beauty staple since 1957, this product ranks #9 in nail strengtheners and is favored worldwide for salon-quality results.




| Asin | B003VDCF2Y |
| Best Sellers Rank | #9 in Nail Strengtheners |
| Item Model Number | 30006207000 |
| Manufacturer | Coty Beauty |
| Product Dimensions | 2.87 x 1 x 5.5 inches; 0.01 ounces |
User
(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
User
Diamond Strength Hardner by Sally Hansen
Very strong harder, would reccomend!
User
Want your mani to last?
This is an amazing nail strengthener. My polish used to chip after 4 days or so, but this helps my mani last a week. Best nail strengthener I have used.
User
I ordered this Sally Hansen Diamond Strength Nail Hardener 45095 Clear
I ordered this Sally Hansen Diamond Strength Nail Hardener 45095 Clear based on the reviews and I'm OK with it but not quite what I expected. I like the clear, it goes on well and dries fast, and looks nice and shiny. However, for me it doesn't last as long as everyone says. Maybe because I don't use gloves when doing dishes, and I wash my hands a lot. But after 4 days it begins to flake and peel so I have to remove it. I leave it off for a couple days so my nails can breathe, and then put it back on again for another 4 days or so. I can't say that it has done anything to help my nails or keep them from breaking or chipping. I've actually had to use an emryboard on a couple nails with the polish on so for me that kind of defeats the purpose. It's clear polish, probably good as a base coat or top coat.
User
Good quality
I love this.
User
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.
User
Not what it use to be
I've used this before and it protected my nails and helped them grow, that was over 10 yrs ago. This didn't do anything and my nails still broke despite religious use
User
Hard as nails
I've used Sally Hansens Hard as nails for years and must say this is tougher by far, in my opinion. I'm a woodworked and sculpture artist who loves to spray paint and play in the dirt with plants and cook. Restoring two old houses and small vintage trailer, i tear up my nails all the time without this. Yesterday I got white spray paint in the middle of my nail and scrubbed it off with scrubber with no marks so far on diamond Sally Hansen. This must be grown out and taken off with acetone, only drawback is it's hard to take off even then, taking a few tries and soaking in acetone. The other stuff can be chipped but this cant, though i did turn one part white hitting it a little too hard. Call me impressed and I now put it over the hard as nails because its stronger. hard as nails is hard in its own right, but I love this more, after years with hard as nails. I can still mess up the tips of nails with all i do, wearing them down, and clean gunk out regularly, every shade of black. I can still get dirt under the outside of nails with this on, but it's easier to clean with this. This stuff is amazing if I can wash spray paint off without damaging it, and I can. I want to say even when I wear the tips of nails down the diamond still looks perfect on the nail that's left.
User
Good
It’s good product
User
Very good to strengthen nails
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.
User
Excellent product
Excellent product, have been using for many years. Strengthens nails after many years of acrylic nails.
User
Assiduité.
En cours d'utilisation. Assez satisfaite. Encore des ongles cassés faut du temps....
User
Bom para violonista
Ótimo esmalte, recomendo!
Trustpilot
2 months ago
2 weeks ago