I'm not sure if it works miracles.

It dries quickly, nails do look harder and after just one use, however, I noticed that they became very dry and started peeling.

The best thing I have ever used. Even better than nail envy. It's like it fixes from the inside out. It's not a strengthening product but a repair one. I used it on very damaged nails (to the point of pain...) from continuous removal of artificial nails and it literally rebuilt them. On a friend who only had a few dents on the surface (from a wheel), it smoothed them out. I highly recommend it.

After first struggling for a month with an unrelated product that the technician who does my semi-permanent recommended to me, which did nothing (my nails were in bad condition from the removal wheel), I bought this and after 2 days of use, my nails are very different! Wonderful.

The product did not deliver on its promises for me. My nails did not harden and it did not prevent them from breaking or bending when I do chores. I wasted my money on useless carpets again

Excellent product!
After continuous applications of acrylic manicure, my nails had become very weak! From the second day, I saw a big difference! They hardened and grew longer without breaking!! I highly recommend it

Amazing product! Use it alone according to the instructions for 6 days and if your nails are in a desperate condition, like mine were, continue for as long as needed, with two coats and after 10 minutes, one coat of OPI nail envy original. Then, one coat of OPI nail envy original day by day for 6 days. On the seventh day, remove the nail polish, and start again until the problem completely disappears and you have fantastic nails. I have never used a more perfect product!