Bodybuilders who used Gen-Shi Masteron 500 definitely received a bang for their buck with an overdosed product.
Gen-Shi Masteron 500 was selected for AnabolicLab’s Masteron Challenge. We were curious to see how Gen-Shi performed in light of its perfect Anavar product tested in August 2015.
First of all, Gen-Shi Masteron 500 does not contain 500 milligrams of drostanolone propionate per milliliter as the product name seems to indicate. Each 5-milliliter vial contains 500 milligrams of drostanolone. In other words, that is 100 mg/ml.
Overdosed products are just as bad as underdosed products as far as quality control is concerned.
The ChemTox lab test results revealed that each milliliter actually contained 123 mg/ml drostanolone propionate. Masteron 500 failed AnabolicLab’s testing process because it was 23% overdosed. Products must be within 20% of label claim to receive a passing grade.
From a quality control perspective, the Gen-Shi Masteron 500 (at 23% overdosed) was not much better than the AM Tech Pharma Mastam Propionate (at 27% underdosed). The quality control issues for both brands should be concerning.
ChemTox lab test results revealed that each milliliter contained 123 mg/ml drostanolone propionate.