Summary
Gen-Shi Laboratories Masteron 500 is presented in a 5-milliliter re-usable vial, labeled to contain 100 milligrams of drostanolone propionate per milliliter. To assess the product’s accuracy and quality, samples of this product were procured by AnabolicLab from a European-based internet source between October 7, 2015, and November 7, 2015. The analysis was funded by AnabolicLab and conducted by ChemTox SAS, an independent and accredited analytical laboratory specializing in advanced steroid analysis.
The product underwent GC-MS/MS quantitative dosage testing to determine the actual concentration of the active ingredient. AnabolicLab’s involvement underscores its commitment to providing reliable, independently verified information to promote transparency and harm reduction in the anabolic steroid marketplace.
Testing Results and Authentication
The samples were forwarded to ChemTox SAS on November 19, 2015, and the report was finalized on December 17, 2015. The product was identified with the following details:
- Code: GSL 110 C 05
- Expiration Date: April 2018
Product Overview
- Manufacturer: Gen-Shi Laboratories
- Product Name: Masteron 500
- Active Ingredient: Drostanolone Propionate
- Code: GSL 110 C 05
- Expiration Date: April 2018
- Delivery Method: Injectable (5-milliliter re-usable vial)
- Specification: 100 mg/ml drostanolone propionate
Sample Acquisition and Testing
- Date Purchased: Between October 7, 2015, and November 7, 2015
- Source: European-based internet supplier
- Product Submitted By: AnabolicLab
- Analysis Paid For By: AnabolicLab
- Analysis Performed By: ChemTox SAS
- Date Received by Lab: November 19, 2015
- Date Report Completed: December 17, 2015
Testing Results
Quantitative Dosage Testing (GC-MS/MS):
- Claimed Dosage: 100 mg/ml drostanolone propionate
- Measured Dosage: 123 mg/ml drostanolone propionate
- Accuracy: 123.0% of the labeled claim
- Variance: +23.0% (measured dosage above the label claim by 23.0%)
Report Number: CTX-DEC-17-2015-GSL110C05
Conclusion
The analysis of Gen-Shi Masteron 500 revealed a measured concentration of 123 mg/ml drostanolone propionate, exceeding the labeled claim by 23.0%. This significant overdosage highlights potential inconsistencies in manufacturing, which could have implications for user safety.
AnabolicLab advocates for consistent third-party testing to validate product claims, ensuring consumers receive accurate information and manufacturers maintain accountability. This effort aligns with AnabolicLab’s commitment to promoting harm reduction and transparency in the anabolic steroid market.
Commitment to Harm Reduction
AnabolicLab is dedicated to advancing harm reduction by providing independent, transparent testing and reporting. These efforts empower consumers with the knowledge to make informed decisions while fostering greater integrity within the anabolic steroid industry.
Disclaimer
The information provided here is for educational and harm reduction purposes only. AnabolicLab does not endorse or promote the use of anabolic steroids or other controlled substances.
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(The following images are photographs of the actual product that was submitted for testing.)
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