I have been nail biting my entire life and am super glad that I found the cure which is Jolanta! Living a very active lifestyle and doing outdoor sports I would not have thought that it would last me long but it showed me the quality of her work. Expect beautiful strong nails for at least a month!! Now, I grown nails long enough to not be ashamed of. P. S it is very relaxing to watch her do what she is passionate about.