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What is Cansema Black Salve?

By Tara Barnett
Updated Jan 29, 2024
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Cansema black salve is a corrosive salve used to treat skin disorders. It is considered an escharotic, meaning that it burns away skin, causing tissues to die, leaving a black, dry scar, much like a burn that eventually sloughs off. The contents of cansema black salve usually include bloodroot and zinc chloride, both of which are considered active ingredients.

Production of black cancer salves is not regulated by any governmental or health agency, and the exact ingredients in cansema and other similar salves may be different from what is listed on the package. While escharotics were once the best medical treatment available for skin lesions and skin cancer, most medical professionals currently consider the treatment outdated and dangerous.

Most cansema purchases occur online because the product is difficult to find in stores. While the original, full strength product is intended for humans, there is a milder version for use on pets. This product is not intended for consumption and can be quite toxic, so caution must be used to keep it away from children and animals.

The salve is applied with the fingers directly to the cancerous area to make a thin covering, and then a bandage is applied over the caked salve. A tingling sensation begins shortly afterward, though this can take many hours to start. After 24 hours, the eschar must be cleaned with rubbing alcohol, and this cleaning must be steadily maintained to prevent a buildup of pus. Once the eschar falls out, which typically occurs after ten days, the treatment is over and the cancer has been, according to cansema producers, completely removed.

Proponents of cansema black salve make many claims as to its effectiveness, many of which are highly questionable. They claim that cansema only burns away aberrant cells, leaving healthy tissue alone. Also, they state that applying cansema to healthy cells will only cause redness, while cancerous cells will be eaten away. This, they say, means that cansema black salve can be used as a cancer test of sorts, as the result of its application will determine whether the cells were cancerous at all. Some go so far as to say that cansema can draw out cancers and therefore can be used for internal cancers.

While it is possible that an escharotic such as cansema black salve could work to remove surface lesions including cancerous cells if applied correctly, the product also damages healthy skin and can result in serious tissue damage. In addition to the possibility of burning holes through skin and other tissues, which will necessitate major plastic surgery, there is also a serious possibility that even when the product appears to have worked and the surface lesion has disappeared, cancer can still exist under the skin.

Black salve cannot draw out cancer from under the skin, nor get rid of cancer that has spread to other parts of the body from the original site. The product is not only ineffective but also frequently dangerous, so cansema black salve has been discredited by almost every reputable American medical institution, and has been listed by the Food and Drug Administration as a fake cancer cure.

WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
By Tombo — On Jul 23, 2013

By the way, post #8 above by pipsea is complete hogwash! It is virtually impossible for Cansema to cause death when it won't touch healthy tissue. Of course, you wouldn't expect a cancer doctor to endorse a simple, cheap effective cure for cancer would we? I just wonder how many people have been disfigured, carved up and died from modern, often ineffective treatments and expensive cancer drugs! Time to let everyone know Cansema cures skin cancer. It cured mine!

By Tombo — On Jul 23, 2013

I was diagnosed with squamous cell carcinoma on my cheek, It was the first time for me and I decided to try black salve since I didn't have health insurance. It was an aggressive case of squamous cell and was spreading fast, and within two days after two consecutive applications. all existing cancer was clearly visible as the Cansema sought out the cancer and exposed it!!

It has now been eight days and the cancer is 60 percent gone and the rest is soon to be gone also. I don't think I will need to re-apply again with cansema! Just be forewarned that treatment on larger spots can be painful and cause swelling. Also make sure to keep wounds clean. I used iodine to help healing.

By anon317765 — On Feb 04, 2013

I've used cansema black salve to remove a basal cell carcinoma from the back of my knee with amazing results. The process took about three weeks. It was at times uncomfortable and even painful (a couple of over the counter pain-killers dealt with that easily). It took another couple of weeks for the hole the eschar (the particular type of 'scab' formed by an escharotic, which bloodroot, the main ingredient in cansema, is) left when it fell away from the healthy tissue to heal over completely, leaving only a slight skin discolouration. I'm now hoping to get hold of some more but it's no longer available from where I got it.

Have other posters actually had a bad experience with cansema? If so I suggest you may have got hold of a tampered batch, or maybe a dodgy knock-off.

Readers, please, look at some of the photos available and decide for yourself. I did before I used it, and I am so glad!

By anon316146 — On Jan 27, 2013

In all the posts, I rarely, if ever, see anyone do a "post salve" biopsy. Surely, if one were diagnosed with a BCC and the "treated" it, a subsequent biopsy would be prudent.

By pipsea — On Jan 17, 2013

As director of a cancer charity (Grace Gawler Institute) where we work with many patients each day, I can’t recommend black salve. Two years ago when researching it, I got 5 million Google results – just today I got nearly 15 million.

The founder of our institute, who has 38 years helping cancer patients, Grace Gawler, has never seen a good result. In my six years, I've seen photos of the salve doing much damage, from burning through the scalp of a child to expose their brain, to patients covered in burns. Patients use it on their breast cancer and I’ve seen massive size breasts weeping and swollen and beyond the help of surgery from black salve.

Our advice is to steer clear. We’ve worked with 14,000 caner patients and never seen a good result. We’ve seen deaths caused and damage done by black salve. This flies in the face of the 15 million Google stories extolling its virtues.

Ending on a positive note: cancer treatments are improving rapidly and we’ve been able to assist many people to find the best treatments.

By anon310366 — On Dec 22, 2012

Properly formulated, and properly used black salve works well in many many cases! There is a conscious effort by special interests to keep this wonderful treatment out of the hands of the people who need it most.

They have literally kidnapped people to keep it off the market. They have also apparently even counterfeited genuine products with fake ones in order to cause harm, distrust and havoc.

Why would they do that? If this treatment became mainstream the cancer industry would lose out billions of dollars in revenue. Unfortunately for some, money and power is all that matters.

By anon266315 — On May 05, 2012

Well I am as skeptical as they come; I hold a BSc and MBA, I worked in the medical science field for many years.

After watching my elderly father treat more than a dozen basal cell carcinomas (BCC) over a 12 month period 100 percent successfully with repeated follow up skin inspections by a dermatologist, I was still skeptical but tried some cansema black salve on a dermatologist confirmed BCC on my ear. It "killed" the BCC in 48 hours then my body's immune response took care of removing the 4mm round dead skin cancer area over the following 10 days. Within one month the hole had been filled in without a scar, just a slight discoloration.

I took detailed, close up, high quality photos every day and my dermatologist was astounded. I have also tried the black salve on non cancerous spots and it does nothing. Educated men and women should seek to find out why this works, and what is it's mechanism of action. Please do not write this off as a scam, quack or snake oil, just because you don't understand it.

By anon257594 — On Mar 27, 2012

It's simple really: Cansema Black Salve has not been subjected to a single clinical trial and therefore its results can only ever be based on anecdotal evidence.

Thousands of people use it and report amazing results. In fact, once they try it, they are angry that the authorities have tried to deceive them with complete lies.

For you to state that its effectiveness is highly questionable, I can only assume that you have tried it for yourself as this the only way that you could have a real opinion.

I have applied the salve to my face 19 times, removed cancers of varying shapes and sizes and have never experienced caustic burning (except from the made in china bandaid) and have virtually no scarring.

My liquid nitrogen scars however, are forever.

By anon169054 — On Apr 19, 2011

@anon135965: I would point out that many pharmaceutical products are proven to be extremely harmful and often with a fatal outcome.

Naturally, there are persons everywhere who will take advantage of an opportunity to make money, without worrying about quality. This applies to anything.

It is common knowledge that veterinary practitioners are usually extremely knowledgeable compared to the medical fraternity. After all, a horse or dog is not able to supply information as is a human with problems. The veterinarian is usually able to discover the problem without this Info. Vets use cansema happily with wonderful results.

By anon169052 — On Apr 19, 2011

To suggest that black salve, correctly formulated, is dangerous is, in the first instance, the result of either a lack of knowledge or the product of influence from the medical/pharmaceutical conglomerate. I have used this wonderful product for my own problems and for countless others and have always achieved amazing and permanent results.

Think about the murderous results emanating from the use of many medications. These are products which continue to be foisted on the unsuspecting persons who use only the medical profession.

I personally, as an alternate health nut, would use Black salve for melanoma and related problems a thousand times before submitting to the knife. Do some honest research.

By anon135965 — On Dec 21, 2010

"Proponents of cansema black salve make many claims as to its effectiveness, many of which are highly questionable."

Why are the claims questionable? Have you followed up with or interviewed any of the "proponents" of Cansema, read their testimonials, or seen their photographic or video pictorials?

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