In tendinopathies, RegenKit A-PRP provides significant clinical benefits in up to 90% of patients with continuous improvement over time. RegenKits® is comprised of sterile disposable tubes, needles, tranfert devices and syringes, packaged in a single-use double blister packs. As a wide variety of clinical indications has been extensively documented in the literature, it has been proven helpful to manufacture various kits, each having as components only the necessary accessories for a defined procedure using PRP. The overall procedure is thus safer for the physician and the patient, reducing the risk of confusion, misuse, etc. RegenKit® A-PRP® Platelet Integrity and Functionality Respond to a specific activation with ADP by an increased expression of P-selectin (CD62P) on their membrane, Resist to hypotonic stress, Aggregate in presence of collagen.