For Days' nucleic acid drink is "Natural DN Collagen," a health drink primarily composed of nucleic acids (DNA/RNA) and nuclear proteins solubilized using proprietary technology. It also contains collagen peptides, proteoglycans, proteoglycans, vitamins, and minerals, and is characterized by its mild sweetness and ease of drinking. It can be used for daily health maintenance and nutritional support. Please understand that this is a used item. Thank you. ☺