A London clinic is drawing scrutiny for a controversial cancer therapy that involves sealing naked patients from the waist down in plastic bags and exposing them to chlorine dioxide gas. Alastair Jessel, owner of the Battersea Park Clinic, described the procedure, dubbed 'Protocol G', on a podcast dedicated to chlorine dioxide. Despite a lack of scientific evidence, Jessel claims remarkable results, calling himself 'the UK's Mr. Chlorine Dioxide'.
What is Protocol G?
Protocol G was devised by Andreas Kalcker, a German promoter of chlorine dioxide as a miracle cure for various ailments. While most adherents ingest diluted drops orally, Jessel uses undiluted gas, sealing patients in plastic bags. 'Protocol G is probably the most dangerous of all,' Jessel admitted, adding that he is one of the few to practice it. Kalcker, however, maintains the procedure is well-tolerated if vapor inhalation is avoided.
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Scientific Community Reactions
Caroline Geraghty, senior specialist information nurse at Cancer Research UK, stated, 'There is no scientific evidence that chlorine dioxide gas exposure is a safe or effective treatment for people with cancer.' Using unproven remedies can interfere with approved treatments and cause dangerous side effects. The scientific community warns patients against relying on these pseudoscientific practices.
Chlorine dioxide, also sold as 'Miracle Mineral Solution', has long been peddled by grifters as a cure for HIV, Covid-19, and autism, with no credible evidence. Interest has surged after US Health Secretary Robert F. Kennedy Jr. mentioned it during a Senate hearing in January 2025. Additionally, the FDA removed a warning about the substance from its website, fueling speculation.
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Alastair Jessel's Background
Jessel has no medical training: he was a stockbroker and ice-cream entrepreneur before registering the clinic in 2021. Initially, he offered scalar wave therapy, a pseudoscientific concept. He claimed to have learned alternative therapies by watching '150 to 200 hours of videos on how to heal people holistically'. The clinic gained attention when tennis star Novak Djokovic used its hyperbaric chamber, but a post featuring Djokovic was later deleted.
Investigations and Controversies
In December 2024, the clinic was raided by the Food Standards Agency and Trading Standards, who found bottles of chlorine dioxide on display. Subsequently, an employee denied the treatment was still offered. Jessel accused 'Big Pharma' of sending someone with a concealed recording device. Despite investigations, the clinic's website removed efficacy references, but its Facebook page continues promoting it.
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Fiona O'Leary, an Irish activist, denounced the practice: 'Vulnerable cancer patients are being experimented on, gassed with bleach, naked.' The daughter of a deceased patient stated her father spent around $5,000 on treatments at the clinic before dying in February 2025.
To learn more about pseudoscience in healthcare, read the related article on Midjourney's ultrasonic scanner, which shows how technology can sometimes be misunderstood. Additionally, explore exclusive circles with Peter Thiel's Secret Club Rankings.
For more information on the dangers of chlorine dioxide, visit Cancer Research UK.
