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💅 Fortify your nails with diamond power – because your hands deserve the best!
Sally Hansen Diamond Strength Nail Hardener uses a cutting-edge micro diamond, titanium, and platinum formula to instantly strengthen and protect brittle nails. Offering up to 10 days of durable, glossy protection, this quick-dry treatment seals fragile nail layers with a nearly shatterproof shield. Trusted by millions since 1957, it’s the go-to solution for professional-quality, long-lasting nail care.
































| ASIN | B003VDCF2Y |
| Additional Features | Quick |
| Age Range Description | Adult,Kid |
| Best Sellers Rank | #1,823 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #6 in Nail Strengtheners |
| Brand | Sally Hansen |
| Brand Name | Sally Hansen |
| Color | Diamond Strength Hardener |
| Container Type | Bottle |
| Customer Reviews | 4.5 out of 5 stars 6,357 Reviews |
| Finish Types | Glossy |
| Included Components | Top Coat |
| Item Dimensions | 2.87 x 1 x 5.5 inches |
| Item Form | Liquid |
| Item Weight | 0.27 g |
| Item dimensions L x W x H | 2.87 x 1 x 5.5 inches |
| 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 |
| Package Size Name | 0.45 Fl Oz |
| Product Benefits | Strengthens and protects nails from breakage |
| Special Feature | Quick |
| Target Audience | Adult Women |
| Type | base |
B**D
Strong nails
Works great!
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.
S**S
Best for strengthening nails?
This is the best product I have found to coat and harden my nails to prevent breakage! Dies fairly quickly.
A**Y
Great product, would recommend, and would buy again
This product is great, once I put it on it was really shiny, clear, and clean looking. When I pressed down on my nails before applying it, it felt weak as if it were going to break fast, but after I put it and pressed down on my nails I could definitely feel a difference because it felt much more strong and I couldn’t press down on it that much because of how strong it was. After a few days of having it my nail broke that’s why I gave 4 stars but besides that it would be 5 stars.
L**B
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.
H**N
Good product for finger nails
Great hardener for finger nails
J**T
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
B**.
Diamond Strength Hardner by Sally Hansen
Very strong, hard, would reccomend!
A**R
Good
It’s good product
C**L
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.
M**9
Excellent product
Excellent product, have been using for many years. Strengthens nails after many years of acrylic nails.
D**I
Assiduité.
En cours d'utilisation. Assez satisfaite. Encore des ongles cassés faut du temps....
A**E
Bom para violonista
Ótimo esmalte, recomendo!
Trustpilot
4 days ago
3 days ago