This item is brand new and unused. It was a gift, but I'm selling it because I can't use it all. Reference Retail Price: ¥15,790 Focusing on magnesium supplementation early on. Contents: 180 tablets, recommended daily intake: 6 tablets [Recommended for those who:] Dislike small fish and seaweed Enjoy alcohol Magnesium, along with calcium, is an essential mineral for maintaining health, forming bones, etc. This product uses amanori (a type of seaweed) and yeast, which are rich in magnesium, as its main ingredients.