Deca Angstrom Your Trustworthy Partner

Our colloidal silver 50 ppm concentration has been tested 99.99% effective against SARS-Cov-2(COVID-19) virus. 2021/05/05

 

Our colloidal silver 50 ppm concentration has been tested 99.99% effective against SARS-Cov-2(COVID-19) virus.

Sample was sent through our China partner to Analytical and testing center of capital regions, Beijing China.