Nail Hardener "Diamond Power" Sally Hansen Diamond Strength

I don't know what it strengthens, but it stays on my nails for almost a month and gives them a polished look. As for the thin brush, there's nothing to worry about, you can learn how to use it. I recommend it.

Once upon a time, many years ago, this product was very popular and considered effective. Nowadays, you can buy better nail strengtheners for less money.

I have the same complaints as the girls below: a terrible smell, an inconvenient thin brush, and a very runny consistency (it drips everywhere). It doesn't prevent peeling. It slightly accelerates nail growth but doesn't make them stronger.

So, I can't recommend it. It's just a shame because I was hoping for miracles.

Unfortunately, it's a waste of money. I used it for 1.5 months and during that time, my nails didn't become stronger, which means that the advertised function of the product is not fulfilled.
The product has a strong unpleasant odor. The brush is thin and inconvenient. I am disappointed with this purchase. 339 UAH - gone to waste.
I see that it's cheaper now.

A huge downside that I didn't come across in any of the reviews is the inconvenient brush. It is very soft and thin, making it impossible to apply the product in 2-3 strokes. You have to go over it at least 5 times, and there's even a bristle sticking out. Using it causes physical discomfort and irritation.

I used it a couple of times, bought it as a base for nail polish. The polish stayed on well.

The nails were flaky, thin, and very soft. After using them for a week and a half, they became stronger. I filed and buffed my nails well, applied the product every day, and removed old layers beforehand. However, my nails continued to peel from the base, and the entire surface was rough. Currently, my nails are growing out healthy. Moreover, where they were severely splitting at the tips, the product seemed to glue all the imperfections together. As a base for nail polish, it works well, and the polish applies smoothly, even if it is picky. I am very satisfied with this purchase!

I am adding to my previous review. The smell is really horrible, but that's the only downside. Before use, make sure to thoroughly shake the bottle, and then the consistency is good and easy to apply. And it dries amazingly quickly! I used it as a base coat for a European untrimmed manicure. It's transparent but glossy. The nails look well-groomed. Verdict - I recommend it, but remember to shake the container thoroughly before applying and only do it in fresh air, or ask your family and pets to leave. However, the smell of acetone quickly dissipates, leaving the nails odorless.

Great product! I decided to give my nails a break from gel polish, as I couldn't seem to grow them out. Finally, with this product, my nails are growing and not peeling or breaking. It works perfectly as a base for regular nail polish.

I really like it! My nails are stronger with this nail polish. I use it as a base under the color polish. I'm already finishing my second bottle. Please bring more!!!! I'm really looking forward to it.

I bought this product based on the reviews here, and I haven't regretted it for a second. It strengthens nails immediately after application and dries quickly. I can also use it as a top coat. I really liked this product! Over the years, it's the best thing I've come across for my beloved nails. Without a doubt, it performs just as well as Dior Diorlisse Abricot, if not better.

I really like it. To prevent nails from peeling, you need to change the file. I have glass Opi nails, manicure is great, but Opi makes them peel. I absolutely loved the Sally Hanson product, the cuticle balm in a white and green spiral container. I applied it to my entire nail every day for a week, then massaged the remaining product into the cuticle. My nails grew. It's the first time in my life. They never grew before, they always broke. My husband and I were like on an excursion to see the length of my nails. He even wanted to take pictures as a keepsake.