Research Peptide

B12

Q: How is B12 shipped?

Orders ship at a $15 flat rate, free on orders of $199 or more, in discreet, insulated packaging. Domestic delivery takes 2–3 business days — 2-day across California, nearby Nevada, and on orders of $250+.

PH-B12COALot documented

B-12 methylcobalamin research-grade compound in 10ml vials

Price

From $18.99

Size

Quantity

Research Use Only — Not for human consumption

$15 flat-rate shipping · Free on orders of $200 or more

This lot's COA — read it free before you order

HPLC + MS verifiedPurity and identity confirmed on every lot
COA on every lotBatch-specific analytical documentation
$15 flat-rate shippingFree at $200+ · 2–3 business days, 2-day in CA
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Reviewed by Peptide Hackers Research Team Updated January 2025

Spec sheet

Specifications

Size: 1000mcg/ml 10ml
Molecular Weight: 1344.4 g/mol (Methylcobalamin)
Catalog No.: PH-B12

Overview

Description

B12 (methylcobalamin) is a research-grade compound with ≥99% purity, supplied in 10ml vials at 1000mcg/ml and 5000mcg/ml. It is used in laboratory studies of cellular energy metabolism, methylation pathways, and neurological function. This bioactive coenzyme form of vitamin B12 is directly utilized by cells without hepatic conversion.

Verified

Verification

Handling

Storage & Handling

Storage
B12 is supplied as a lyophilized powder. Keep it sealed, dry, and away from light until reconstitution.
Form
Lyophilized powder
Long-term
−20°C or below
Protect from
Light & moisture
Reconstitution
Let the vial reach room temperature before opening, then add solvent slowly down the vial wall — do not shake.
Recommended
Bacteriostatic water
Technique
Sterile, no agitation
After mixing
Refrigerate
Stability
Lyophilized material is stable when frozen. Once reconstituted, keep it cold and minimise handling to preserve integrity.
Lyophilized
Stable frozen
Reconstituted
Keep refrigerated
Avoid
Freeze-thaw cycles

Research

Research Overview

B12 is a synthetic peptide compound used in laboratory research settings. Researchers studying metabolic regulation and energy homeostasis use this compound to investigate cellular signaling pathways, receptor binding affinities, and structure-activity relationships. Each batch is manufactured under controlled conditions and verified through HPLC and mass spectrometry analysis to ensure consistency across experimental replicates.

Documentation & Resources

Certificate of Analysis for B12 — batch-specific purity and identity verification
Research Blog — protocols, guides, and peptide research literature
Research Use Policy — handling and compliance guidelines

FAQ

Frequently Asked Questions

What purity is B12?

Each lot of B12 is verified by HPLC and confirmed by mass spectrometry. Results are documented in a batch-specific Certificate of Analysis.

Does B12 include a Certificate of Analysis?

Yes. A batch-specific Certificate of Analysis for B12 documents its purity and identity and is available on our COA page.

How should B12 be stored?

B12 is supplied as a lyophilized powder. For short-term storage keep it refrigerated; for long-term storage keep it frozen, away from light and moisture.

How is B12 shipped?

Orders ship at a $15 flat rate, free on orders of $200 or more, in discreet, insulated packaging. Domestic delivery takes 2–3 business days — 2-day across California, nearby Nevada, and on orders of $250+.

Can B12 be used on humans or animals?

No. B12 is supplied strictly for in-vitro laboratory research. It is not for human or veterinary use, consumption, or diagnostic or clinical applications.