This is the best nail hardener I have ever tried! I started using nail optimizer over 20 years ago and it has always maintained my nails healthy and flexible! My manicure also last at least a week since I apply both top coat and base coat on each manicure with the nail optimizer. This is literally the miracle nail hardener!
By the time I put this on my right hand, my left hand is dry and ready to go. If I want to stamp or do other nail art, I don't have to wait for my nails to dry. This is the greatest top coat ever.
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