Frank Ludlow, 59, was caught by City of London Police trying to send dozens of parcels of fake remedies in a post office near his West Sussex home.
Judge William Mousley said father-of-two Ludlow contacted national governments and "took advantage of an international crisis".
Ludlow was given a suspended 10-month sentence at Portsmouth Crown Court.
American custom officials had intercepted Ludlow's fake kits at Los Angeles International Airport, with his "Trinity Covid-19 SARS Antipathogenic Treatment" labels attached, the court was told.
His address was also found by the officials who alerted City of London Police on 23 March.
Hours later, officers went to a post office in Petersfield, Hampshire, to ask for a description of the person who had been sending the packages.
The court heard while officers were talking to staff Ludlow walked in with more packages addressed to France, Shoreham and New York.
Prosecutor Steven Hopper said: "Mr Ludlow admitted to making the product and had been making it for 17 years.
"Despite saying his cures had had not been officially tested, Mr Ludlow told police he was confident it took out 'all viral infections'."
Ludlow "made elaborate claims" about wanting to make 1,000 kits a week and he sent a message to a friend saying "Thank god for Covid-19", Mr Hopper added.
That post exemplifies the root of the problem - a historical legacy of centuries of propaganda based on the premise of European racial supremacy. It portrays the white colonial master that is the savior to the ever thankful poor black slave. Thank God, I’m an emancipated African - and I don’t worship at the feet of white gods - the Queen or the Governor, who are simply relics of outmoded colonialism built on the tenets of racist institutions of white supremacy that colonized and enslaved Africans for centuries.
As Bob Marley said, “Emancipate yourself from mental slavery,” because sometimes, “shit is just shit!”