- Brand: Kyusai - Product Name: Hiza Support Collagen - Contents: 150g (approximately 30 days' supply) - Regular Price: 5447 yen 　　　(Subscription Price: 4903 yen) I am selling this because I have accumulated too much through a subscription with Kyusai [Official]. Purchased in May 2025 Walk, stand, sit, and extend Make bending and straightening your knee joints easier No returns Non-smoker No pets Although it is new and unused, it has been stored by a private individual, so please refrain from purchasing if you are sensitive or concerned. Only those who understand are welcome to purchase.