Review title is I have learned that if I use this they grow super fast and I'm less likely to bite them [SEP] I have been using this for years. I first saw it at Walgreens and started using it. I can no longer find it in stores so I started buying it from Amazon. I have very thin and brittle nails. I also bite them and they do not grow fast. I have learned that if I use this they grow super fast and I'm less likely to bite them.