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Alastair Jessel described administering Andreas Kalcker’s Protocol G at Battersea Park Clinic, sealing clients naked in plastic bags and exposing them to undiluted chlorine dioxide gas.
WiredAlastair Jessel, who operates the Battersea Park Clinic in south London, described sealing clients naked in plastic bags from the neck down and exposing them to undiluted gaseous chlorine dioxide. He spoke on a podcast earlier this month that focuses on chlorine dioxide treatments.
Jessel said he asked a private messaging group of chlorine dioxide influencers whether anyone had tried the protocol and received no responses.
Andreas Kalcker wrote on his website that Protocol G does not mention cancer treatment. Kalcker told Wired that, properly applied with the precaution of avoiding vapor inhalation, the procedure is well-tolerated. Caroline Geraghty, senior specialist information nurse at Cancer Research UK, stated there is currently no scientific evidence that chlorine dioxide gas exposure is a safe or effective treatment for people with cancer.
She added that taking unproven remedies instead of medically approved treatments could affect how well those treatments work and could produce dangerous side effects. Jessel referred Wired to Protocol G in Kalcker’s book Forbidden Health. He said he discovered chlorine dioxide in 2024 and previously called himself the UK’s Mr.
Chlorine Dioxide in an interview with Robert Yoho last year. Jessel stated he believes there are nine causes of cancer, including stress and a bad marriage. “We all have cancer growing up every day, but our immune system keeps destroying it,” he said.
He began posting bottles of chlorine dioxide to clients to treat cancer and Covid. The clinic was registered with Companies House in December 2021. It initially offered scalar wave treatments. Jessel stated that only 70 percent of clients saw benefits from those treatments.
The clinic later added red-light therapy and a hyperbaric oxygen chamber that Novak Djokovic used when he visited last summer. In December 2024 the clinic was raided by the Food Standards Agency and Trading Standards, according to Jessel. A July 2024 email from a Trading Standards officer stated that bottles of chlorine dioxide were found on display.
A later visit found no bottles for sale, and an employee told an undercover officer the clinic no longer offered the treatment. References to chlorine dioxide efficacy were removed from the clinic’s website around the time of the investigation, though the clinic’s Facebook page continues to promote the substance and links to a talk by Pierre Kory.
The UK’s Cancer Act 1939 prohibits nonmedical professionals from advertising treatments or cures for cancer.
Jessel alleged that Big Pharma sent someone with a concealed recording device to secretly record staff discussing chlorine dioxide. He stated that he is treating lots of people for lots of different illnesses and has referred to his own clients as quite stupid when it comes to administering their own chlorine dioxide treatments.
Natalie Passant stated her father spent approximately $5,000 on scalar wave treatment at the clinic in 2024.
Her father passed away in February 2025. Jessel wrote in a Google Review response that he never encouraged Passant’s father to forgo radiotherapy. Fiona O’Leary reported Jessel’s use of chlorine dioxide to Trading Standards last year.
She stated that vulnerable cancer patients are being experimented on, gassed with bleach, naked. Jessel’s father was knighted by the British royal family. Before operating the clinic, Jessel worked as a stockbroker and owned a tile business, then became an ice-cream entrepreneur.
He has no background in medicine or science. US Health Secretary Robert F. Kennedy Jr. mentioned chlorine dioxide during his Senate confirmation hearing in January 2025. The FDA removed a warning about chlorine dioxide from its website a year ago.
middleeasteye.netThe Lebanese environmental activist was injured two weeks earlier at her house on Mansouri beach and died Friday. She had protected sea turtle nesting sites for more than 25 years.
The IndependentExtreme heat, wind and drought conditions fueled multiple wildfires across the western United States on Sunday. An uncontained blaze in Utah prompted the evacuation of a small town southwest of Salt Lake City.
The Japan TimesFrance restricted alcohol sales at festivals and kept parks open overnight as temperatures reached 39-41 °C. Similar alerts covered most of Germany and parts of Italy and Spain.