Pharmaceutical Contaminant Analysis — ED APIs

HPLC Analytical Report, Flora Research Laboratories (2007)

One of the most serious quality and safety concerns in the male sexual wellness supplement category is the illegal adulteration of products with undisclosed pharmaceutical erectile dysfunction drugs. To provide independent, analytical verification of VigRX's purity, Flora Research Laboratories (Grants Pass, Oregon) — a leading dietary supplement analytical laboratory — conducted a rigorous HPLC-based screen of a VigRX tablet blend lot for the presence of four major ED pharmaceutical compounds and their chemical analogues.

Study Design

A sample of VigRX tablet blend (Lot #120657) was submitted to Flora Research Laboratories and analyzed using ChromaDex Method CD-ATM-031-03-01 (modified). High Performance Liquid Chromatography (HPLC) with spectral analysis was used to screen qualitatively for the presence of Sildenafil (the active compound in Viagra), Vardenafil (Levitra), Tadalafil (Cialis), and Acetildenafil — a structural analogue of Sildenafil commonly used as an adulterant in fraudulent supplements. The method also assessed the full chromatogram for any compounds with spectral similarity to known ED drug analogues.

Results

Sildenafil, Vardenafil, Tadalafil, and Acetildenafil were not detected in the sample. Furthermore, no compounds with spectral profiles similar to known ED pharmaceutical analogues were identified anywhere in the chromatogram. The result was unambiguous and unequivocal across all four compounds screened.

Why This Matters

Undisclosed pharmaceutical adulterants in supplements are a serious public health issue — they can cause dangerous drug interactions (particularly with nitrates prescribed for heart conditions), mask underlying health conditions, and expose consumers to significant cardiovascular risk. A clean analytical result from an accredited third-party laboratory demonstrates that VigRX achieves its sexual wellness benefits exclusively through its natural herbal ingredients, not through any hidden pharmaceutical agents.

Conclusion

VigRX tablet blend is confirmed free from Sildenafil, Vardenafil, Tadalafil, Acetildenafil, and all tested ED pharmaceutical analogues. This independent third-party verification is an essential transparency credential, distinguishing VigRX from adulterated products in the marketplace and providing consumers and healthcare professionals with confidence in the product's integrity and safety.

Read the Pharmaceutical Contaminant Analysis — ED APIs: Report 1 →
Read the Pharmaceutical Contaminant Analysis — ED APIs: Report 2 →
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