How to verify MGF is authentic

Step-by-step guide to verifying your MGF is genuine: checking the COA, matching the batch number, and downloading from the product page.

Step 1: Locate the batch number

Every Peptify MGF vial has a batch (lot) number printed on the label. Note this number down — it should match the Certificate of Analysis published on the product page for that specific batch.

Step 2: Download the COA from the product page

The batch-specific COA for your MGF is downloadable directly from the product page on peptifyuk.com. This is the most reliable verification method because the document is hosted under our control, tied to the batch number, and includes the original HPLC chromatogram image plus mass spectrometry data.

If a supplier does not publish batch-specific COAs or only provides a generic purity claim, that is a significant red flag.

Step 3: Check the HPLC peak

On the COA, look at the HPLC chromatogram. A genuine MGF sample should show a single dominant peak at the expected retention time, with purity >99% (peak area). The mass spectrometry section should confirm the molecular weight matches the theoretical mass of MGF.

Any chromatogram with multiple large peaks, or where the purity percentage looks inconsistent with the visible peak, should prompt you to contact the supplier for clarification.

Buy MGF for research

99%+ HPLC-verified MGF in stock. Every vial ships from the UK with a batch-specific Certificate of Analysis. Same-day dispatch on orders before 1pm.

MGF 2MG

Frequently asked questions

What is MGF?

MGF (Mechano Growth Factor) is produced in response to mechanical stimulus or exercise stress. It is studied in the satellite-cell activation and skeletal-myocyte pathway literature.

How does MGF relate to IGF-1?

MGF is a splice variant of IGF-1, sharing structural elements but expressed in response to different stimuli. Research has examined whether the two variants activate overlapping or distinct downstream pathways.

What purity does Peptify MGF meet?

Peptify MGF is 99%+ HPLC-verified with a batch-specific Certificate of Analysis from Janoshik Analytical, published on the product page and downloadable directly.