The difference is very noticeable when you use it versus when you don't. Even though my nails are quite weak, I noticed they became dry and brittle after just a few days of not using it, so I always apply it diligently.

I purchased a new product as I had used up the previous vitamin supplement I was using. I didn't realize it was an imported product. I easily purchased it on Naver. My nails are usually weak and tend to crack and break, so I always use a nail supplement. The previous one I used was a light pink color, but this one is transparent. It also seems to apply more thinly and evenly, which I liked. My nails seem to be getting healthier. The typical nail product scent is also relatively mild.