Rung Five
Myths and everyday exposures
Unclear

GcMAF

a blood product sold online as a cure. Claimed cures.

Also called or includes: GcMAF cancer injections, DBP-MAF

Safety: Unlicensed products may be contaminated: the UK regulator found sterility problems at the factory it inspected.
Verdict
UnclearThere isn't enough human evidence to say either way.
How sure
Rung 1 · UnprovenLab or animal data only, or never directly tested in people.

The rung shows how sure the science is, not how big the effect is. How to read these ratings

Cancers affected

None

What the evidence shows

GcMAF is promoted for cancer, HIV and autism, but it is not licensed and has not been tested for quality, safety or effectiveness. In 2015 the UK medicines regulator seized more than 10,000 vials from a factory where the plasma it was made from was labelled not for use in people.

What to do

Don't use it. If you have, see your doctor.

Sources

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Related

Every myth and exposure we rated, or follow one cancer step by step: breast cancer, colorectal cancer, lung cancer and prostate cancer.