This is a nail strengthener I bought at Daiso! It costs only 1,000 won, which is super, super cheap, right? So I didn't feel like a waste and thought it was definitely worth the investment. When I first applied it, my nails felt a bit cool and had a subtle shine. I heard it's good for thin nails that break easily, so I bought it to give it a try. The scent wasn't too strong when I applied it, so it didn't upset my stomach or anything!! So, I am satisfied with the product in terms of price, quantity, and everything else!