Preparation for dietary prophylactic use to strengthen and nourish connective tissue, especially dedicated to horses struggling with recurring injuries in the area of ​​tendons and ligaments. The composition of the product is a mixture of easily digestible chondroprophylactic substances of the highest quality with high concentration in a daily dose. Hydrolysed collagen type II and MSM are natural components that build tissues in the body, providing them at the appropriate level has a positive effect on nourishment and strengthening the soft structures of the locomotor system. The high bioavailability and effectiveness of TendoFlex is ensured by the addition of vitamin C, which is necessary for the synthesis of MSM, collagen, and hyaluronic acid, and additionally has a positive effect on maintaining the physiological balance of connective tissue, cartilage and bone. Application: recurrent injuries of tendons and ligaments deep nourishment of soft tissues protection of the overloaded movement apparatus increasing the flexibility and strength of connective tissue