Completely removed almost all of my nail. I had to get the SNS nails taken off two weeks later because they were too long and the new tech at another salon showed me how much of my nail was filed down and they could do nothing for me because of the damage. I’m shocked. Now I have to wait 4 months to do my nails again and I’m left with brittle nubs that have broken halfway through the nail because nothing was left!! Ground down almost to the skin!!