🚚 Free next-day tracked delivery on in-stock orders over £50 🖊️ Peptide Pens → 🖊️ Retatrutide Pens: 20mg £124.99 · 40mg £159.99 → 🎬 View Peptide Videos → 🔬 New: Senolytics & Longevity Research. Explore the science → 👤 Members save 10% on eligible products. Join free → 🚚 Free next-day tracked delivery on in-stock orders over £50 🖊️ Peptide Pens → 🖊️ Retatrutide Pens: 20mg £124.99 · 40mg £159.99 → 🎬 View Peptide Videos → 🔬 New: Senolytics & Longevity Research. Explore the science → 👤 Members save 10% on eligible products. Join free → 🚚 Free next-day tracked delivery on in-stock orders over £50 🖊️ Peptide Pens → 🖊️ Retatrutide Pens: 20mg £124.99 · 40mg £159.99 → 🎬 View Peptide Videos → 🔬 New: Senolytics & Longevity Research. Explore the science → 👤 Members save 10% on eligible products. Join free →

Free Peptide Mixing Calculator

Work out the strength of your mix and how much to draw up, in seconds.

Open the Mixing Calculator → Free to use. No sign-up needed.

About Corex Vitality™

Corex Vitality™ is a UK-based supplier of research peptides, in vials and pre-filled pens.

Our published batches are tested by third-party labs using HPLC, and every certificate is on our Verification page for anyone to check.

Our free Learning Hub has guides and videos to help you understand the science.

Research you can verify.

How it works

1

Pick how much is in the vial.

2

Pick how much liquid you add.

3

Pick your target amount.

The calculator then shows the strength of the mix and how much to draw up, with a simple syringe guide.

Ready? It only takes a few clicks.

Open the Mixing Calculator →

For in-vitro laboratory research only. Not for human or veterinary use.

Research you can verify.

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