Sally Hansen Diamond Strength®

Stops nails from breaking.

Diamond Strength Instant Nail Hardener

Stay strong under pressure! Stop nails from breaking with with Sally Hansen Diamond Strength® Nail Hardener.

Our real Micro-Diamond and Titanium formula instantly bonds to your nails, strengthening while virtually ending breaking, peeling and tearing. When nails need a boost, Sally Hansen Diamond Strength® Nail Hardener shields them – leaving them noticeably harder and stronger. Apply 1 coat to bare nails. Use alone or as a base coat. With Diamond Strength® Nail Hardener, diamonds are your nails' best friend! Step into your always-on salon. No menu. No rules. America’s #1 nail brand, Sally Hansen puts the power of self-made beauty in your hands, with salon-tested solutions and on-trend colors.

HOW TO APPLY

1

Apply 1 coat to bare nails.

2

Use alone or as a base coat.

REVIEWS

Reviews

Rating Snapshot

Select a row below to filter reviews.
1054 reviews with 5 stars.
516 reviews with 4 stars.
275 reviews with 3 stars.
67 reviews with 2 stars.
51 reviews with 1 star.

Overall Rating

4.3

Review this Product

Select to rate the item with 1 star. This action will open submission form.
Select to rate the item with 2 stars. This action will open submission form.
Select to rate the item with 3 stars. This action will open submission form.
Select to rate the item with 4 stars. This action will open submission form.
Select to rate the item with 5 stars. This action will open submission form.
Adding a review will require a valid email for verification

Average Customer Ratings

Filter Reviews

789 to 818 of 1963 Reviews
789 – 818 of 1963 Reviews

Stronger nails review

4 years ago
I've used Sally Hansen's diamond strength formula many times throughout the years. My nails are very weak and brittle and I was recommended to try this one to strengthen my nail. This product was really easy to apply it didn't have a bad odor and I feel after a little time my nails felt and looked stronger and healthier. Definitely cost-effective and I will purchase again in the future and definitely recommend this one.

Originally posted on influenster.com

Always comes in clutch when my nails are struggling

4 years ago
I love this product. I use it whenever my nails are struggling and need a little "glue" to keep them together. I keep it in my purse so if I chip a nail I can apply a coat of this polish and keep it from breaking more until I get a chance to file it and repaint it. It is also a lot cheaper than the OPI polish I use.

Originally posted on influenster.com

4 years ago
I generally get my nails dipped, but when they are taken off my nails can be so dry and damaged. I use this to help strengthen the nail bed in between.

Originally posted on influenster.com

4 years ago
It was very good, it protects the nail very well my nails break of easily and this made them stronger and I dint have to worry about them breaking , I also use it as a top coat and it keeps the nail color for very long

Originally posted on influenster.com

Great Nail polish

4 years ago
Great nail polish. It is a little cheaper than most nail polishes out there. It comes in many different colors to choose from. Highly recommend to anyone looking for a cheaper nail polish with an professional look. I would buy this over and over again.

Originally posted on influenster.com

4 years ago
The BEST nailpolish for nail growth. Before using, my nails were so thin and would break so easily. This made my nails long AND strong. As long as you keep applying, your nails will keep growing!

Originally posted on influenster.com

4 years ago
LOVE this product: i use it very often. Keeps my nails intact after cleaning and trimming my cuticles. Very easy to use and long lasting would recommend to anyone

Originally posted on influenster.com

4 years ago
Best top coat or clear coat for natural nails I have tried. Great price and a lot of product in the container. Helps your nails stay strong and grow long! Wonderful!!

Originally posted on influenster.com

4 years ago
Love this product, it definitely lives up to the name! My top choice of nail hardening products. Within days you can tell a difference.

Originally posted on influenster.com

4 years ago
This makes my at home manicures last so much longer! My nails have been stronger and more healthy looking!

Originally posted on influenster.com

4 years ago
Would recommend! I really love this nail polish it’s not too expensive and is great for work and going out; besides just this style of the nail enamel they have colors with diamond strengthen and I live for it

Originally posted on influenster.com

4 years ago
I’m sure it works good. I used it on a broken acrylic to try to save my real nail under that was exposed. It did the trick for a couple days.

Originally posted on influenster.com

4 years ago
Great product. Goes on just like any base coat and then works its magic! Sometimes you just need a little relief between nail appointments and this gives you just that.

Originally posted on influenster.com

4 years ago
Life saver!! my nails are weak because of having a thyroid problem so I tried this hoping it would help save my nails from braking all the time after a month of using my nails r growing n they r stronger

Originally posted on influenster.com

Love this!

4 years ago
I use this all the time between polishes and artificial nail applications. Keeps my nails feeling strong and healthy. Never would be without it

Originally posted on influenster.com

Long lasting nail polish

4 years ago
I enjoy this polish because it's affordable, goes on smoothly, and takes a lot of wear. I like the ergonomic bottle and cap, doesn't get stuck as much as some other brands. I always apply a clear base coat and finish with a clear top coat for best results. Sally Hansen is my go to for natural nail care.

Originally posted on influenster.com

4 years ago
It’s a great nail polish . Long lasting for me ! The colors they have are so pretty ! Would def recommended this product if your looking for a brand that has some nice colors and is long lasting

Originally posted on influenster.com

4 years ago
Really good product! I got it from my sister! I just love it! It really did work out on my nails. My nails were sensitive so I was looking for something to help, and it did help. I only use this nails strength!

Originally posted on influenster.com

Great product

4 years ago
Very impressed with this. Stands true and makes your brittle nails stronger! I would definitely recommend to anyone trying to make their natural nails longer and stronger.

Originally posted on influenster.com

4 years ago
This makes your nails almost seem like you have a layer of resin over them. I used this all the time when I did sports as my nails would constantly chip off, so this was a saving Grace for me! However, you have to be careful when closing it as it can completely seal itself if you don’t close it correctly. Also, I still have a spot on my desk where I found out later I accidentally spilled it and the next day I just had the spilled bottle glued to my desk haha

Originally posted on influenster.com

4 years ago
have been using the Sally Hansen's Diamond polish products because I had problems growing nails, they split break wont grow due to my MS. Now I apply the clear polish every few days and look at my beautiful nails. People ask me all the time if they are real, Yes all mine!

Originally posted on influenster.com

4 years ago
I used this after taking off my acrylics and my nails were brittle and really easy to break. This made my nails hard and now my nails have grown out and they are stronger then ever. Love this product.

Originally posted on influenster.com

4 years ago
I use this product all the time. I used to be a nail biter, my nails are so damaged, brittle and always breaking. This helps strengthen my nails and helps it grow

Originally posted on influenster.com

Great nail strengthener

4 years ago
You cannot go wrong with this nail strengthener Sally Hansen has hands down did the most with this strengthener it is a great product and there is no improvement to be made it compares not to not a lot to other brands because it is one of a kind I would buy this again

Originally posted on influenster.com

4 years ago
Very nice product it comes in so many different colors and an affordable price makes my nails look amazing

Originally posted on influenster.com

For brittle nails

4 years ago
I use this product a lot because my nails become so brittle from constant hand washing and mostly the sanitizer at work. This polish really penetrates into your nails and hydrates them.

Originally posted on influenster.com

4 years ago
I’ve used a few products from this brand that are similar to this one and they are all just so good! Nails felt strong after using this!

Originally posted on influenster.com

Really good quality

4 years ago
I've used this for a long time to help keep my nails from peeling and breaking so easily. It looks good on its own or as a top coat. It doesn't yellow like a lot of clear coats do either.

Originally posted on influenster.com

4 years ago
This was a great product to put on as a topcoat.  It makes your nail color last longer than usual.  It definitely added a hard topcoat.

Originally posted on influenster.com

4 years ago
I noticed huge improvements in just the first few uses, I applied everyday for about a week and am now applying two times a week. My nails are noticeably stronger and healthier

Originally posted on influenster.com

789 – 818 of 1963 Reviews