Key selling points: Sally Hansen has a variety of nail strengtheners to choose from, but this one stands out for its formula, which contains actual micro diamond platinum powder to help keep nails strong and healthy.
You won’t have to worry about your nails cracking and splitting for up to 10 days, guaranteed, when you use it.What customers say: “I love this product.
My nails became much stronger after a week. You can seriously tell the difference. No more easy breakage. They're finally growing out long.
You need this nail hardener.” —, reviewer on Ulta.comKey selling points: This may be on the higher end for nail strengtheners, but over 3,700 five-star Amazon reviewers will say that it’s worth the dough.
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