I just received this last week. I'm selling it because I have some left over due to forgetting to take it. Expiration date: September 2027 This product is formulated with 4.5mg of iron (equivalent to 2 bunches of spinach), calcium, zinc, vitamins, and protein in one packet to help alleviate the nutritional concerns of busy parents, in collaboration with a registered dietitian with experience in childcare. It's heat-resistant, so you can add it to dishes and get nutrients without anyone knowing! (※Based on 100g per bunch of spinach, and 2.0mg of iron per 100g of spinach) Unopened, brand new, and unused, but it has been stored at home, so please refrain from purchasing if you are concerned about minor details.