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The Cansema Black Topical Salve, which contains zinc chloride and the herb bloodroot, among other substances, is used for treating skin cancers, melanomas and tumors. There is no herb with such a long history of success treating cancer as bloodroot.
Note: If taken externally, this treatment is potentially very, very painful as the ingredients are passing through the skin. If taken internally, unless it is combined with certain other substances, it may cause stomach problems.
Zinc chloride is "a highly antiseptic caustic that is somewhat more readily absorbed by malignant tissue than by normal tissue, though it is often reactive with healthy as well as morbid tissue." "... zinc chloride (in a liquid form at room temperature), while in the presence of certain herbal combinations at known concentration ranges, has strong cancer-killing properties."
Using bloodroot for treating skin cancer dates back to the mid-1800s. "Bloodroot has been used historically in numerous topical preparations for the treatment of various skin cancers, and also for sores, warts, eczema, and other dermal & epidermal problems."
According to the vendor's own web page: "The current ingredients are:
zinc chloride (Cl2Zn),
NDGA (nordihydrogauaretic acid, from Larrea mexicata), (I think the correct
spelling is: nordihydroguaiaretic acid)
sanguinaria [or bloodroot] (Sanguinaria canadensis);
galangal root (Alpinia officinarium) or ginger root (Zingiber officinale);
graviola leaf (Annona muricata),
bitter melon seed (Momordica charantia), and
glycerine (used as a humectant, to keep the product moist)."
Larrea mexicana (the correct spelling) is also known as Larrea tridentata, or one of the varieties of chapparel. Chapparel in tea form can also be used as a skin cancer treatment. Chapparel is toxic in doses that are too high, so it is best to take it as part of a herbal complex such as Cansema.