Radiation Protection on Earth and Beyond

Time, Distance, Radiation Shielding

Company News

  • National Guard Makes $4.5 Million Dollar Purchase of 360 Gamma Shields

  • AstroRad Radiation Vest Blasts off to Moon on Historic Artemis I Mission

  • StemRad technology selected to the Jerusalem Post's "Top 10 Israeli Inventions of the Decade"

  • Retired Astronaut Scott Kelly Joins StemRad's Advisory Board

  • AstroRad Radiation Vest Blasts off to International Space Station

Our Users

StemRad has made personal radiation protection possible, making the lives of Physicians, Astronauts, First Responders, and Nuclear Industry Workers safer while they complete their critical tasks. Through scientific breakthrough and innovation, StemRad has enabled radiation shielding to save lives.

The Radiation Shield, Reinvented

Whole body shielding from penetrating radiation is impossibly heavy. StemRad’s selective radiation shielding technology focuses shielding only on critical organ systems, thereby providing life-saving protection while allowing full mobility.

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When exposed to high doses of radiation, the most common cause of death is damage to the bone marrow, the body’s blood source. With continued exposure to low doses of radiation, cancer can manifest in the organs most sensitive to radiation.

“Underlying bone marrow failure from the external whole body irradiation was the major contributor to all Chernobyl deaths during the first two months”.

United Nations Scientific Committee on the Effects of Atomic Radiation 2008



Our radiation protection solution is to harness the regenerative capability of stem cells to allow the body to recover after exposure. We do so by selectively and effectively shielding the bone marrow and other stem cell-rich organs in the abdominal and pelvic regions such as the ovaries, colon, and bladder. This is the only way to provide meaningful protection while remaining mobile. Competing whole body solutions offer little to no protection from penetrating radiation such as gamma rays as they would have to weigh a quarter of a ton to do so.

“While whole body shielding is inherently heavy, partial body radiation shielding is lighter in weight and selectively shields tissues of increased radiosensitivity (i.e. bone marrow) with substantial amounts of shielding material to protect hematopoietic functions; therefore, potentially preventing the acute health effects of exposure to gamma radiation  (i.e. Acute Radiation Syndrome -ARS)”.


Nobel Laureate Endorsement

Roger Kornberg, Aaron Ciechanover, Michael Levitt

"StemRad's products dramatically increase survival upon exposure to high radiation doses while substantially reducing cancer probability due to continued exposures to low doses of radiation"

Dr. Michael Levitt, Stanford Professor and
2013 Nobel Laureate

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