Whether you're receiving commercial pharmaceutical testosterone or compounded product, knowing how to verify its legitimacy protects you from counterfeit, subpotent, or contaminated medication. Here's what to check.
Commercial Pharmaceutical Testosterone
What Should Be on the Label
- NDC (National Drug Code): A unique 10-digit identifier for the manufacturer, product, and package size
- Manufacturer name and address
- Lot number: Traceable to the specific production batch
- Expiration date: Based on stability testing
- Concentration: e.g., "200 mg/mL"
- Volume: e.g., "1 mL" or "10 mL"
- Schedule III marking: "CIII" or Schedule III controlled substance notice
- Storage conditions: "Store at 20°–25°C (68°–77°F)"
Compounded Testosterone
Compounded product doesn't have an NDC (it's not a commercial product). Instead, look for:
- Pharmacy name, address, and phone number
- Prescriber name
- Patient name (compounded prescriptions are patient-specific)
- Lot/batch number
- Beyond-use date (BUD): The compounding equivalent of an expiration date
- Concentration, volume, and carrier oil listed
Red Flags
- Missing lot numbers or expiration dates
- Labels that look hand-printed or unprofessional
- Product received without a prescription on file
- Vial caps that show signs of tampering (loose crimps, crooked seals)
- Unusual color or visible particles in the oil (should be clear to slightly yellow)
- Price that seems impossibly low (legitimate testosterone has manufacturing and regulatory costs)
The Bottom Line
Trust but Verify
Every vial of testosterone you inject should have traceable identification — lot numbers, pharmacy details, and proper labeling. If anything looks off — missing information, unprofessional labeling, signs of tampering — contact your pharmacy before using the product. Verification takes 60 seconds. A contaminated injection can take months to treat.