Sanitary napkins need to be well kept after purchase. Since sanitary napkins are excellent at absorbing liquid, they cannot be kept in a wet or dusty place. If a zipper bag is used, make sure to seal it and prevent foreign substances from infiltrating the bag. If they are inevitably kept in an unsealed container, they need to be used as soon as possible. Make sure not to keep them in such a humid place like near toilet.   

Yejimiin has manufacturing factories in Eumseong and Incheon in Korea, and directly produces not only finished sanitary napkins but also SAP sheets containing oriental herbal ingredients, which are the main ingredients of the sanitary napkins. As it acquired Environmental Management System (EMS) and Quality Management Systems ISO9001 and ISO14001, it manufactures products in reliable production facilities based on thorough quality management.  

The expiration date of sanitary napkins is based on Korea Food and Drug Administration standards, and it is 3 years from the date of manufacture (36 months) that is indicated (in the order of year, month and day) on the packaged product.