There's this page: The Voice of the Diabetic. The pertinent stuff is a bit more than halfway down.

"It is manufactured by drawing blood and processing it in the lab to concentrate growth factors. The product is frozen single-application plastic tubes which are stored in a freezer. Thawing takes place on the day of usage. Once liquefied, it must be used within 24 hours. After exposure to room temperature, Procurin must be used within fifteen minutes and the remainder discarded."

Another link: Vim and Vigor Magazine.

"Some of the latest advances in dressing wounds work to keep them moist, including ointments, skin grafts and products that stimulate the patient's growth of cells and collagen. One example is Procurin. The patient's blood is taken and growth factors, such as white blood cells, are extracted and applied as a topical."

If you like multi-syllabic, medico-genic verbiage: Nonsurgical Modalities to Enhance Healing and Care of Soft Tissue Wounds

Application of autologous platelet derived growth factors (Procurin, Curative Health Services, Setauket, NY) have also been successful in healing pressure sores and chronic wounds.