Vitamins, minerals, phytonutrients, thymus therapy and melatonin stimulate the immunity during the elimination of cancer cells, diminish toxic side effects of chemotherapy and have an anti-cancer effect. For example, vitamin C administered intravenously will increase the hydrogen peroxide in the cancer cell leading to cell death (increased apoptosis).

Injections with mistletoe (Viscum album) also serve as a highly valuable complementary cancer therapy.

This therapy is often applied in Germany to improve the immune system. In this way, the body itself will be able to combat cancer cells more easily. The injections are administered three times a week, cyclically with pauses, and this for 1 up to 5 years.