Energy and metabolism
Peptides with verified purity and COA certificate
Every batch is independently tested with HPLC and mass spectrometry. The lab report is available before purchase, together with cold-chain delivery.

Check batch
Lab report before purchase
Enter the batch number from the label or the product description.
Batch PT-2611-TZ
Tirzepatide · 10 mg
HPLC
99,4 %
MS match
Confirmed
Endotoxins
Below limit
Shop by goal
Choose a research area
The catalog is divided into three areas so you can quickly find the right formulations.
Most searched peptides
Tested formulations
Tirzepatide and Retatrutide ship immediately. Other products are delivered within 3 weeks.
Energy and metabolism
Energy and metabolism
Regeneration

Quality and testing
Four checks for every batch
Testing is carried out by an independent analytical laboratory, and the results are published with the product.
HPLC purity
Liquid chromatography shows the proportion of the target molecule.
MS identity
Mass spectrometry confirms the molecular weight.
Endotoxins and sterility
Screening test for bacterial endotoxins.
COA for the batch
PDF report with batch number and analysis date.
From synthesis to your door
How a batch reaches you
Every step has a clear timeframe and responsibility.
Step 1
Synthesis
The peptide is synthesized and lyophilized into vials.
Step 2
Independent testing
A batch sample is tested for HPLC, MS, and endotoxins.
Step 3
Cold packaging
Insulated packaging with ice packs.
Step 4
Discreet delivery
Neutral package with no indication of contents.

Storage and handling
Proper storage preserves purity
Refrigerator 2–8 °C
Immediately upon receipt. For long-term storage, freeze at −20 °C.
Protection from light
Keep vials in the original box.
Reconstitution
Use the reconstituted peptide within the period stated in the report.
Science
Latest articles
Expert articles in Slovenian and Croatian about peptide research.

Regeneration · 12. 10. 2026
BPC-157: what research says about tissue regeneration
HR: BPC-157: what research says

Metabolism · 28. 9. 2026
GLP-1 peptides: semaglutide, tirzepatide, and retatrutide
HR: GLP-1 peptides: a comparison

Longevity · 14. 9. 2026
GHK-Cu and skin: the copper peptide under the microscope
HR: GHK-Cu and skin
Frequently Asked Questions
Answers before you order
Can't find the answer? See all answers on the FAQ page.
Enter your batch number, for example PT-2611-TZ, into the "Check batch" field. We'll show you the HPLC chromatogram, MS match, and purity, and you can download the report as a PDF even before purchase.
Enter your batch number, for example PT-2611-TZ, into the "Check batch" field. We'll show you the HPLC chromatogram, MS match, and purity, and you can download the report as a PDF even before purchase.
Tirzepatide and Retatrutide ship immediately. Other products can be pre-ordered and are delivered in about 3 weeks.
We pack the vials in insulated packaging with ice packs and ship them Monday through Wednesday, so the package doesn't sit over the weekend.
Store the lyophilized powder in the refrigerator at 2–8 °C, protected from light. For long-term storage, freezing at −20 °C is suitable.
By cash on delivery, by pro forma invoice with a QR code, or with Flik payment. We do not accept card payments. Details are on the Payment and Delivery page.

Every batch tested. No compromises.
Newsletter
New batches, stock arrivals, and new articles
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