Cobalamin (B-vitamin)
Cobalt-centered tetrapyrrole; methionine synthase + methylmalonyl-CoA mutase cofactor. Injectable forms (methylcobalamin, hydroxocobalamin, cyanocobalamin) used in research stacks for fatigue / metabolic / neurological endpoints. Mechanistically distinct from peptides but commonly co-administered.
Add Vitamin B12 · 10mg · Injectable vial — the only size listed
B12 Research Strips 1500MCG (30 Strips) (Vitamin B12)
Discount auto-appliesSave $2
30.01% sale + VIALTALK 10% · 37.01% off total
$1.57/mg · 10mg
B12 (Liquid) (Vitamin B12)
Use codeVIALTALKSave $3
0.03% sale + VIALTALK 10% · 10.03% off total
$2.70/mg · 10mg
$2.98/mg · 10mg
$0.25/mg · 100mg
—/mg · size not confirmed
—/mg · size not confirmed
B12 10mL (Vitamin B12)
Use codeVIALTALKSave $4
32.65% sale + VIALTALK 10% · 39.39% off total
—/mg · size not confirmed
Pricing shown is sourced from each vendor's live partner price feed and refreshes automatically. VialTalk partner links carry our referral parameter — using them costs you nothing extra and supports the community. Most vendor discounts apply automatically at checkout; a few require typing the code shown on the card.
Want mechanism, research findings and vendor comparisons for Vitamin B12?
Ask the Research Lab →In-depth research monograph on Vitamin B12 — structure, mechanism, and the published evidence base.
