As per a report, he was able to develop biceps of 24 inches in size because of the inflation that the oil caused. What he has injected into his arms is known as "Synthol". On searching the internet, you will see that many such enhancement oils are available online.
The bodybuilder now claims that doctors have warned him that his arms are about to fall off, but at the same time, he has also claimed that he is going to inject himself with more such muscle enhancers.
But do these substances make the muscles grow? The answer is no. They only make them appear bigger without increasing the strength of the muscle.
As per Tereshin, he initially started by injecting 250 ml of oil in his biceps, but later felt that he could grow them a little more. He also said that he is continued with the process despite it giving him a fever of more than 40 degrees Celsius. Doctors have warned that he is also at the risk of suffering a stroke.