Gen-Shi Masteron 500 Lab Test Results

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.)

Gen-Shi Labs Masteron 500 Dosage Quantification Lab Results [PDF]
How many milligrams of drostanolone propionate are really in each milliliter of Gen-Shi Laboratories Masteron 500? GC-MS/MS (December 17, 2015) …

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Drostanolone Propionate Raw Data GC-MS/MS [PDF]
This PDF report (537 kb) includes the GC-MS/MS raw data from lab testing reports completed by ChemTox on December 17, 2015 on the following drostanolone propionate (Masteron) products: 15-08140 – Alpha…

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