works great but read to end for final update [SEP] it is too soon for me to tell if this is really working but the surface of my nails looks betterthe problem i have is with the applicator they use a lip gloss applicator and the fuzz started coming off the first time i used it i am now using bare plastic to apply it just ordered some eyeliner wands to replacehope they fit the tube gonna jump in here with my latest update in case you are tempted to stop reading still love this product andyaaayyyyymy latest direct order has brushes instead of foam fuzz things on the wands they earned a fifth star for this so happyupdate i file my nails daily in one direction with a fine glass file to make sure there are no rough edges from day to day i have done this for years thoughit is not the reason my nails are so much better nowexpensive yes worth it absolutelyfinal update since i also use a cuticle oil that supposedly has strengthening properties i decided to ask the rejuvica people two questions separate customer service representatives this product does not penetrate the nailit stays on the surface and if you wash your hands the product washes off i am going to stop using this product when it runs out if my nails suffer i will go back to using it but put some kind of protective wax product over it immediately if my nails continue to look good i will just stick with my cuticle oil barefoot scientist