I have nothing good to say about this product.I am not sure if it strengthens your nails or not as it peeled off of my nails in a matter of hours.As I mentioned in a previous review I have never had an issue with polish peeling from my nails. Even as cheap as it was ($4.99 CAN) it was a huge waste of money I used it about 5 times. Just to make sure that the first few times were not a fluke. I made sure that my nails were very clean and it peeled off every time. I still have a full bottle and am going to throw it out.