The shortfall was made up with carob, Dixon told the court. "Doing so generated an unlawful profit," he said.
Sportsvel, as promoted by Charles, was advertised as containing 250mg of deer velvet but sometimes had as little as 180mg, the court heard.
Despite the mislabelling, Carline said the altered product was twice as effective. During last year's hearing, he gave evidence about the methods he used for testing his supplements.
The defendant said he and Meads would act as "guinea pigs". Carline told the court he varied the dosage until he gave himself nose bleeds.
"Consumers were exposed to an unscientifically tested product," Dixon said. He also outlined Carline and his company's continued attempts to "obstruct and frustrate" the Commerce Commission's investigation, by failing to provide relevant documents for the investigation.
Carline believed there was a high-level conspiracy against him.
Dixon suggested the court impose a fine on the company starting at $425,000 and on Carline about $8000, before mitigating factors were considered by Judge Phillips.
Carline will apply for a discharge without conviction, which was opposed by the prosecution.
Defence counsel Judith Ablett-Kerr, QC, said the errors her client made were not deliberate.
Silberhorn and Carline must be dealt with separately, she stressed.
The commission wants more than $15,000 costs, saying it would be a tiny portion of the total bill incurred.