According to the research conducted by a well-known university in Hong Kong, immune cytokine level is significantly up-regulated after taking Bacillus subtilis extract.

The level of neutralizing antibody against spike protein significantly increases after Bacillus subtilis extract consumption.

Pleases see:


The results are published in the leading international journal《Vaccine》
  • Neutralizing antibodies in volunteers (Registered on
  • Pre-test: July 2021(By Hong Kong Registered Laboratory)
  • Subjects were divided into two groups :
    Vaccinated (More than 4 months)

Clinical studies registered in National Institutes of Health (NIH)

  • Neutralizing antibodies in volunteers (Registered with the Chinese Clinical Trial Registry) 
  • Pre-test: July 2021 (By Hong Kong Registered Laboratory)