Source comparison
Comparison Table: Tesamorelin Supplier Verification Standards 2026
The table below compares third-party testing protocols across supplier categories. Notice how comprehensive third-party verification separates research-grade suppliers from bulk commodity vendors. Real Peptides (Research-Grade) Gradient HPLC + MS/MS via accred
This comparison does not assign a generated winner or score.
- The table below compares third-party testing protocols across supplier categories. Notice how comprehensive third-party verification separates research-grade suppliers from bulk commodity vendors.
- Real Peptides (Research-Grade)
- Gradient HPLC + MS/MS via accredited third-party lab
- Tandem mass spectrometry confirms full 44-AA sequence
- LAL assay, <5 EU/mg guaranteed
- Batch-specific COA with chromatogram and MS spectra
- Only option for publication-grade research requiring traceable verification
- Standard Research Supplier
- HPLC via in-house lab only
- Molecular weight by MALDI-TOF (bulk lot, not batch-specific)
- Not standard; available on request
- Generic COA from bulk raw material testing
- Acceptable for preliminary screening; unreliable for mechanistic studies
- Bulk Commodity Vendor
- UV absorbance at 280nm (in-house)
- Not performed
- No COA or outdated third-party COA from different batch
- Unsuitable for any research requiring reproducibility or publication
- Compounding Pharmacy (Clinical)
- USP monograph compliance (identity only)
- Not required under USP standards
- Performed for sterile compounding only
- USP certificate; not research-grade verification
- Designed for clinical dosing, not laboratory research