Every batch we release is evaluated through a panel of independent, orthogonal analytical methods — not a single test, but complementary techniques that verify identity, purity, composition, and manufacturing consistency from multiple scientific angles. The methods below are the foundation of that process, because real confidence comes from documented evidence, not claims.
Retatrutide 10 mg · Lot SRP26130-A01
Separation technique characterizing chemical composition of peptide preparations; separates target peptide from synthesis-related impurities, truncated sequences, degradation products, oxidized species; chromatogram enables purity calculation via peak integration.
Industry-standard method for routine peptide purity/QC; verifies manufacturing consistency and detects impurities from synthesis, purification, handling, or storage.
Combines chromatographic separation with mass spectrometric detection to verify molecular identity; compares observed molecular mass to theoretical weight; can detect peptide-related impurities and contaminants of differing mass.
Complements HPLC by confirming the principal peak is the expected peptide, not just chromatographically pure.
Quantifies carbon, hydrogen, nitrogen, sulfur to calculate Net Peptide Content (NPC), estimating actual peptide material vs. moisture, salts, counterions, residual solvents.
Orthogonal technique complementing chromatographic purity by evaluating elemental composition.
Quantifies bacterial lipopolysaccharides (LPS) from Gram-negative cell walls; evaluates pyrogenic bacterial residues rather than microbial viability; results as Endotoxin Units (EU) per vial.
Additional assessment of manufacturing cleanliness and process control.
Evaluates finished products for viable aerobic microorganisms, yeast, and mold; TAMC and TYMC quantify microbial burden on unopened finished samples under controlled conditions.
Assesses manufacturing hygiene, environmental monitoring, and packaging integrity.
Sensitive elemental detection quantifying trace arsenic, cadmium, lead, mercury from raw materials, equipment, processing aids, or environment.
Additional verification of raw material quality and manufacturing process control.
Compares analytical results across manufacturing lots to evaluate reproducibility, process stability, and consistency.
Consistent analytical performance supports robust manufacturing and long-term quality management.
Batch Report (COA)