Recommended nail hardeners for thin nails

Hi. I've always been very interested in and fond of nail care, and I often do it as a hobby. I went to Daiso to buy nail products and found a nail hardener. I happened to need a nail strengthener, so I bought it and tried it on right away. It applied well and was really good, and it looks pretty too. If you're interested in nails, you should definitely try this. It's really cheap at only 1,000 won.