Summary

Geneza Pharmaceuticals GP Mast 100 is presented in a 10-milliliter multidose vial, labeled to contain 100 milligrams of drostanolone propionate per milliliter. To assess the product’s quality and potency, samples 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 laboratory specializing in advanced steroid testing.

The product underwent GC-MS/MS quantitative dosage testing to verify its active ingredient concentration. AnabolicLab’s commitment to independent testing ensures that consumers receive unbiased, reliable data to make informed decisions and promote 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 authenticated with the following details:

• Lot Number: GP135H
• Expiration Date: September 2018
• ISN Number: D5C2958Q3832 (successfully verified on genezapharmaceuticals.com)

Product Overview

• Manufacturer: Geneza Pharmaceuticals
• Product Name: GP Mast 100
• Active Ingredient: Drostanolone Propionate
• Lot Number: GP135H
• ISN Number: D5C2958Q3832
• Expiration Date: September 2018
• Delivery Method: Injectable (10-milliliter multidose 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: 168 mg/ml drostanolone propionate
• Accuracy: 168% of the labeled claim
• Variance: +68.0% (measured dosage above the label claim by 68.0%)

Report Number: CTX-DEC-17-2015-GP135H

Conclusion

The analysis of Geneza Pharmaceuticals GP Mast 100 revealed a measured concentration of 168 mg/ml drostanolone propionate, significantly exceeding the labeled claim by 68.0%. This overdosage raises concerns about manufacturing quality control and the consistency of the product.

AnabolicLab emphasizes the importance of independent third-party testing to ensure product reliability and encourage manufacturers to uphold stringent quality standards. These efforts align with AnabolicLab’s mission to promote transparency and harm reduction in the anabolic steroid industry.

Commitment to Harm Reduction

AnabolicLab is dedicated to fostering harm reduction by providing independent, transparent testing and reporting. These efforts empower consumers to make informed decisions and encourage greater accountability within the anabolic steroid marketplace.

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.

Discuss the Geneza GP Mast 100 lab test results on the AnabolicLab forum.

(The following images are photographs of the actual product that was submitted for testing.)

Geneza Pharma GP Mast 100 Dosage Quantification Lab Results [PDF]
How many milligrams of drostanolone propionate (aka Masteron) does Geneza GP Mast 100 contain in each milliliter? 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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