When collagen was used in a study of 20 patients suffering from diabetic foot ulcers, all cases showed epithelialization from 17-63 days with an average of 39.6 days.

Another study with diabetic foot ulceration had a patient whose ulcer was not responsive to several treatment for over seven months when treatment with collagen began. In about 4 months, the ulcer was reduced virtually 100%.

A patient with a history of diabetic had been fighting an ulcer for nearly five years and had tried several treatment protocols before utilize collagen. Within one month, the wound "presented with decreased amount of drainage, no undermining, sinus  tracking, or odor".

Dramatic results have also occurred after treating diabetic, non healing, deteriorating ulcers with collagen.

Cases of gangrene also found tremendous improvement with these products and an amputation could be avoided. A diabetic patient suffering from gangrene on his right foot was treated with collagen dressings after skin graft when other treatments had failed showed a tremendous decrease in wound size within three weeks.

Patients with radiation burns who had undergone various therapies with little success, found almost complete closure of their wounds which had remained open for years together. This therapy is also a boon to bedsore patients.