Updated June 2026 — prices verified across 17 vendors
We checked all 17 vendors on PepsTracker for research-grade Vitamin B12. Here's what's available right now, sorted by price per milligram after discount codes.
| Vendor | Form | Size | Price | After Code | $/mg | Code |
|---|---|---|---|---|---|---|
| 🥇 Ion Peptides | Cyanocobalamin | 10mg | $34.00 | $28.90 | $2.89 | Glowlab (15%) |
| Mile High Compounds | Cyanocobalamin 1mg/mL 10mL | 10mg | $39.99 | $35.99 | $3.60 | GLOWLAB (10%) |
| LA Peptides | Cobalamin | ~10mg | $99.99 | $89.99 | ~$9.00 | PEPSTRACKER (10%) — Out of Stock |
Best value: Ion Peptides at $2.89/mg after the Glowlab 15% discount code. They also carry a Methylated B12 variant.
📊 Compare Live Prices →Vitamin B12 (Cobalamin) is an essential water-soluble vitamin with roles in DNA synthesis, red blood cell formation, and neurological function. Research peptide vendors primarily sell the Cyanocobalamin form — the most stable synthetic version — as a lyophilized powder or injectable solution for laboratory use.
Ion Peptides sells B12 as a lyophilized powder at $29–$34/10mg, depending on promotions. They also carry a Methylcobalamin (methylated, active form) variant. Mile High Compounds sells B12 as a premixed Cyanocobalamin solution (1mg/mL in 10mL) for $39.99, which is convenient but slightly more expensive per milligram.
Ion Peptides ($29/10mg with 15% off using code Glowlab = $24.65) is currently the cheapest source for research-grade B12 tracked by PepsTracker. Prices are updated regularly.
Cyanocobalamin is the synthetic, most chemically stable form of B12 — preferred for research use. Methylcobalamin is the active, naturally occurring form. Ion Peptides carries both. Mile High Compounds stocks only Cyanocobalamin.