How many vials are in a Vitamin B12 kit?

Every kit is 10 vials. The "5mg" label means 5 mg per vial, so a 5 mg kit gives 50 mg total, a 10 mg kit gives 100 mg total, and so on.

Is the price per vial or per kit?

Prices shown are for the full 10-vial kit. We always show the per-vial and per-mg breakdown so you can compare honestly.

What payment methods do you accept?

SEPA bank transfer (IBAN) is our default — secure, fee-free, instant confirmation. We can also send a secure card-payment link on request via WhatsApp.

Do you ship outside the EU?

Yes — UK, USA, Middle East, Asia and Australia. EU is fastest (2–5 days). International is tracked and discreet. Some destinations are restricted — checkout will tell you.

How is purity verified?

Every batch is independently tested by HPLC and mass spectrometry. We can send the batch-specific COA for your order on request.

Is this intended for human use?

No. Vitamin B12 sold by Regena Peptides is a research compound supplied strictly for in-vitro laboratory investigation by qualified professionals. Not for human or veterinary use.

Buy Vitamin B12 — 10-Vial Research Kit

€ Price per mg — honest breakdown

Every Vitamin B12 kit ships as 10 vials. Here's the exact maths so you can see which strength gives you the most peptide per euro. Larger kits are usually significantly cheaper per mg.

Kit price

€239

0 mg × 10 vials

Per vial

€23.9

€239 ÷ 10 vials

Total mg in kit

0 mg

0 mg × 10

Per mg

€0.00

€239 ÷ 0 mg

What is Vitamin B12?

Vitamin B12 (cobalamin) is an essential cofactor used in laboratory research as a reference compound for one-carbon and propionate metabolism, and as a co-component of lipotropic research blends.

Mechanism of action

Cofactor for methionine synthase and methylmalonyl-CoA mutase in one-carbon and propionate metabolism.

Primary research areas

One-carbon metabolism, methylation and lipotropic research models.

Research notes

Standard component of MIC / Lipo-C lipotropic research blends.
Methylcobalamin and cyanocobalamin forms differ in cofactor handoff kinetics.

Why researchers buy from Regena

HPLC ≥99% purity

Every batch independently tested. Mass spectrometry verification on every research compound. COAs on request.

10-vial kits, properly sealed

Lyophilized peptide, rubber-stoppered amber vials, batch-coded. Stable for shipping; cold storage on arrival.

Ships from Spain, EU-wide

Tracked delivery 2–5 working days across the EU. Discreet, plain packaging. UK & worldwide options.

Secure SEPA bank transfer

Encrypted checkout, verified IBAN. No card details stored. Card payment links available on request.

How ordering works

1
Pick your Vitamin B12 kit above
Each kit contains 10 vials. Choose your strength — bigger vials give you a lower €/mg.
2
Secure checkout in under 2 minutes
Add to cart, fill in shipping, get your IBAN and order reference instantly.
3
Pay by bank transfer (or card on request)
Bank transfer is fastest and fee-free. Need a card? Message us on WhatsApp and we'll send a payment link.
4
We ship within 24 hours
You get a tracking number by email + WhatsApp. EU delivery 2–5 working days. COA included on request.

Frequently asked questions

Research-use disclaimer

Information on this page is provided for educational and scientific reference purposes only. Vitamin B12 is a research compound intended for in-vitro laboratory investigation by qualified professionals. Nothing here constitutes medical advice, dosing guidance or a recommendation for human or veterinary use. Half-life and mechanism descriptions reflect published literature approximations.