Brand new, unopened. Please refrain from price negotiations. Thank you. [CoCoKarada] Knee Stuff Undenatured Type II Collagen [Food with Functionality Claims] 60 capsules * Supplement to support discomfort and bending/stretching of the knee joint Functional food that supports knee joint problems (Notification number J506) The daily intake is only 2 capsules, 30 days' worth (1 bottle) * This product is recommended for those who are concerned about their knee joints to try for one month. The long-selling "CoCoKarada Undenatured Type II Collagen" sold since 2013 has been renewed as "Knee Stuff" (December 2024). Reduces discomfort in the knees for those with exercise habits Supports knee flexibility and mobility Supports middle-aged and elderly people when going up and down stairs, squatting, etc. Undenatured Type II Collagen using UCII, a raw material extracted from chicken cartilage (as enzyme-degraded water-soluble collagen peptide) 2.4mg * Contains 40mg as uc2 (per 2 capsules per day) Type II collagen is a collagen that is abundant in articular cartilage. (*Type 1 collagen is more common in skin, etc.) Undenatured Type II collagen maintains the helical structure of collagen because it extracts Type II collagen using a special technique. (*Collagen denatures with heat, etc.) It works even in small amounts because it is delivered directly as undenatured Type II collagen. Other health ingredients (per 2 capsules) N-acetylglucosamine 60mg, hyaluronic acid 60mg, Ooitadori extract 15mg, Jin-gu-so extract 20mg Recommended for those who were not satisfied with other joint supplements