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AESTX / LABORANALYSEN

Qualität. Dokumentiert.

Die veröffentlichten Originalberichte für GHK-Cu und Retatrutide an einem Ort. Öffne einen Report oder verifiziere ihn direkt bei Janoshik Analytical.

Jeder Bericht dokumentiert die jeweilige untersuchte Probe. Produkt, Testnummer und Analyseverfahren bleiben direkt zugeordnet.

Every batch is tested by Janoshik Analytical — one of the industry’s leading independent analytical laboratories — for purity, endotoxins and heavy metals. All original reports can be viewed and verified directly with Janoshik.

GHK-Cu

GHK-Cu

🧪
Purity (HPLC)
GHK-Cu
✓ Passed
Test #133328
🛡️
Endotoxins (LAL)
GHK-Cu
✓ Passed
Test #133329
⚗️
Heavy metals
GHK-Cu
✓ Passed
Test #133330
Retatrutide

Retatrutide

🧪
Purity (HPLC)
Retatrutide
✓ Passed
Test #133331
🛡️
Endotoxins (LAL)
Retatrutide
✓ Passed
Test #133332
⚗️
Heavy metals
Retatrutide
✓ Passed
Test #133333

What do the results mean? A brief explanation.

A reputable peptide report tests three independent criteria. Important: HPLC may show a peptide to be 99.9% pure and it may still contain endotoxins or heavy metals. Each criterion is therefore tested separately . Disclosing all three provides the complete picture.

Learn how we test each batch and how you can verify the reports yourself: Quality & transparency →

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Purity · HPLC

The high-performance liquid chromatography (HPLC) method separates the sample into its components and shows the percentage of the target peptide, as well as any other peptides or by-products present.

Reference values In research, ≥95 % is generally considered good, and ≥98 % is considered high purity. Our batches achieve ≥99 %.
🛡️

Endotoxins · LAL test

Endotoxins are bacterial residues measured in EU/mg (Endotoxin Units) . The LAL test detects them with high sensitivity. Lower values indicate cleaner production. Detectable trace amounts are normal and reflect the sensitivity of the measurement.

Reference values In the scientific literature, <1 EU/mg is considered a conservative reference value for research, and <0,1 EU/mg for particularly sensitive applications. Our values are well below these thresholds.
Endotoxins & the LAL test explained in detail →
⚗️

Heavy metals · ICP-MS

The ICP mass spectrometry (ICP-MS) detects even minute quantities of heavy metals such as lead, arsenic, cadmium or mercury — residues that may originate from raw materials or synthesis and are not detected by HPLC.

Reference values The reference is the ICH Q3Dlimits for elemental impurities. Our batches remain well within this reference.

All information is provided exclusively for research documentation (Research Use Only). Reference values are drawn from publicly available scientific literature, including USP and ICH Q3D, and provide context rather than regulatory approval or recommendations for use.

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