40 vendors list Vitamin B12. The most-sold size is 10 mg, priced from $12.00 to $110.00 a vial across 9 vendors with an exact in-stock price. The median is $53.75. Last read Nov 7, 2026.
The vitamin sold in peptide vials, at prices from $20 to $83 for the same thing.
Card one came out on top. We earn nothing from it. We don't partner with any store selling Vitamin B12 at 10 mg, so cards two and three are the next two stores in the sort. We earn nothing from any of them.
Our pickStore saysIssued per lot with a certificate number, an accession number and a lot number, for example lot CD5-05042026.
Requires an account to see prices.
Runner-upStore saysYes: COA library with every lot ("112 products, 309 batches"), each with the full COA and a Verify link to the lab's own lookup, searchable by the lot number on the vial; some older lots show no la…
Runner-upStore saysBatch-specific COA for what you order (stated).
Every figure here is reconstructible from the full table below. Links noted "We earn from this link" carry a sponsored tag; a commission never changes a card's position, and a partner that wins the rule stays in first place. Prices exclude shipping and were read on the dates shown.
| Vendor | Size | Price | Per mg | Availability | Checked | Link |
|---|---|---|---|---|---|---|
| Amino Amigos B12 10MG/10ML | 10 mg | $12.00 | $1.20 | in stock | Nov 7, 2026 | View |
| Ion Peptide B12 - 10mg | 10 mg | $24.50$35.00Starting price, larger sizes cost more | $2.45 | in stock | Nov 7, 2026 | View |
| Ion Peptide B12 (Methylated) - 10mg | 10 mg | $52.50$75.00Starting price, larger sizes cost more | $5.25 | in stock | Nov 7, 2026 | View |
| Glacier Aminos B12 10MG | 10 mg | $24.99 | $2.50 | in stock | Nov 7, 2026 | View |
| T Core Biotech Vitamin B-12 10mg | 10 mg | $30.39$37.99 | $3.04 | in stock | Nov 7, 2026 | View |
| Alpha Omega Methylated B12 10MG | 10 mg | $55.00 | $5.50 | in stock | Nov 7, 2026 | View |
| Iron Peak Peptides Vitamin B12 | 10 mg | $55.00 | $5.50 | in stock | Oct 10, 2026 | View |
| Simple Peptide Methylated B12 | 10 mg | $55.00 | $5.50 | out of stock | Nov 7, 2026 | View |
| Simple Peptide Mitochondrial B12 | not stated | $55.00Size not captured, and this vendor shows the same price on other compounds | in stock | Nov 7, 2026 | View | |
| Prime Lab Peptides Vitamin B12 10mg Research Vial | 10 mg | $65.00$70.00 | $6.50 | in stock | Nov 7, 2026 | View |
| Solas Science Vitamin B12 (Methylcobalamin) | not stated | $29.99 | in stock | Nov 7, 2026 | View°code peptidedecoding saves 10% | |
| Fusion Peptides B-12 | not stated | $37.99 | in stock | Nov 7, 2026 | View°code peptidedecoding saves 15% | |
| Royal Peptides Vitamin B12 GMP 10/30ml Vial (10ml) | 10 ml | $45.00 | in stock | Nov 7, 2026 | View° | |
| AminoVault Vitamin B12 | 20 ml | $49.30$58.00 | in stock | Nov 7, 2026 | View° | |
| Ignite Peptides Vitamin B12 | not stated | $60.00 | in stock | Nov 7, 2026 | View° |
We earn from these links. It never changes a price or a position here.
Already mixed and priced per bottle, so not compared per milligram with a vial of powder.
| Vendor | Size | Price | Per mg | Availability | Checked | Link |
|---|---|---|---|---|---|---|
| ResearchemB-12 - 1,000mcg/mL (10mL) | 1 mg/ml | $16.99 | — | in stock | Nov 7, 2026 | View |
| Evolve BioPepB-12 10mg 1mg/ml | 1 mg/ml | $20.00 | — | in stock | Nov 7, 2026 | View |
| Rivn PeptidesB12 10ML | 10 ml | $23.99 | — | in stock | Nov 7, 2026 | View |
| OP PeptidesB12 10ml / 10mg | 10 mg | $24.99 | — | in stock | Sep 28, 2026 | View |
| Revolution ResearchB-12 1000mcg/mL 30mL | 1000 mcg/ml | $28.99 | — | in stock | Sep 28, 2026 | View |
| Peak Lab PeptidesB12 (1ml / 1mg) | 1 mg | $29.73 | — | in stock | Nov 7, 2026 | View |
| Disguised AlphaMethylated B12 (1MG/ML) | 1 mg | $29.99 | — | in stock | Nov 7, 2026 | View |
| Ion PeptideB12 Dissolvable | Not stated | $35.00 | — | in stock | Nov 7, 2026 | View |
| Penguin PeptidesB12 10mg (10ml) | 10 mg | $44.00 | — | in stock | Nov 7, 2026 | View |
| Recon PeptidesMethyl B12 | Not stated | $45.00 | — | in stock | Nov 7, 2026 | View |
| PeakForce LabsB12 – 10mL Vial | 10 ml | $49.00 | — | in stock | Nov 7, 2026 | View |
| Nextech LabsB12 ( Methylcobalamin ) 2500mcg per ml (20ml) | 50000 mcg | $55.00 | — | in stock | Nov 7, 2026 | View |
Priced per pack of strips, so not compared per milligram with a vial.
| Vendor | Size | Price | Per mg | Availability | Checked | Link |
|---|---|---|---|---|---|---|
| Glacier AminosB12 Research Strips 1500MCG (30 Strips) | 1500 mcg | $24.99 | — | in stock | Nov 7, 2026 | View |
Multi-vial boxes and bundles. Prices are for the whole pack.
| Vendor | Pack price | Per vial | Availability | Checked | Link |
|---|---|---|---|---|---|
| Aavant ResearchVitamin B12 (1mg, kit of 10 vials) | $50.00 | 10 vials, $5.00 per vial | in stock | Oct 21, 2026 | View |
| Glacier AminosB12 10MG (10-Pack) | $167.43 | 10 vials, $16.74 per vial | in stock | Nov 7, 2026 | View |
| Glacier AminosB12 10MG (5-Pack) | $106.21 | 5 vials, $21.24 per vial | in stock | Nov 7, 2026 | View |
Does not name a testing lab on this product's page.
Coverage record →Names its testing lab: not named; lot-specific third-party COAs per the store.
Coverage record →Does not name a testing lab on this product's page.
Coverage record →Does not name a testing lab on this product's page.
Coverage record →Does not name a testing lab on this product's page.
Coverage record →Does not name a testing lab on this product's page.
Coverage record →Names its testing lab: Bioviridian, College Station Texas.
Coverage record →Names its testing lab: ILS Laboratories (San Diego, CA; ISO/IEC 17025); COA per batch in a COA portal.
Coverage record →Does not name a testing lab on this product's page.
Coverage record →Does not name a testing lab on this product's page.
Coverage record →Names its testing lab: Janoshik claimed, not ISO 17025 accredited; Finnrick independent testing averages 6.8 of 10 across 31 samples, tirzepatide batches ranged 4.2 to 9.5.
Coverage record →Does not name a testing lab on this product's page.
Coverage record →Every per mg number here divides the price by the milligrams printed on the vial. Testing labs regularly find vials that weigh less than the label says.
Shipping is often flat, so it hurts small orders most. Several vendors add a card fee and discount for crypto. Two offers a dollar apart can swap places at checkout.
A bigger vial costs less per mg and expires on the same schedule. Once mixed, most people work to about 28 days in the fridge, so the saving only counts if you finish it.
Ignoring the few freak listings at each extreme, the dear end of the Vitamin B12 market costs 9.2 times what the cheap end does, per milligram.
Half the stores charge more than this per mg at this size and half charge less. It moves with sales, which is why every row carries a date.
Stores with an exact, in-stock price at this size. Under three and we publish no median.
Market median at 10 mg: $6.50 per mg on Aug 26, 2026, $5.50 on Nov 8, 2026, 9 stores comparable today.
| Date | Median per mg | Low per mg | Stores |
|---|---|---|---|
| Nov 8, 2026 | $5.50 | $1.20 | 9 |
| Nov 7, 2026 | $5.50 | $1.20 | 9 |
| Nov 5, 2026 | $5.50 | $1.20 | 9 |
| Oct 31, 2026 | $5.50 | $1.20 | 9 |
| Oct 24, 2026 | $5.50 | $1.20 | 9 |
| Oct 22, 2026 | $5.50 | $1.20 | 9 |
| Oct 21, 2026 | $5.50 | $1.20 | 9 |
| Oct 20, 2026 | $5.50 | $1.20 | 9 |
Oral B12 is a supplement. Injectable cyanocobalamin is an approved prescription product, and a research-labelled vial sold online is not that product.
Full Vitamin B12 record →There is no pharmacist behind it, no dispensing record, and nobody on the hook for what is inside. The lab report is the whole quality system, which is why it sits next to the price here.
Research use only is a claim the seller has to keep making. A vendor that adds dosing instructions, health claims, or personal-use wording has stepped outside the framework it relies on, and that says something about the seller.
What customs and carriers do varies by state and by shipper. This describes how these products are sold and is not legal advice.
Freeze-dried powder keeps for a long time in the freezer and for months in the fridge. Once liquid goes in, most people work to about 28 days in the fridge, away from light.
What arrives is powder in a sealed vial. Water goes down the inside wall rather than onto the powder, and the vial is swirled instead of shaken. Neither the water nor the syringes are in the prices above.
A larger Vitamin B12 vial costs less per mg and expires on the same schedule once mixed. The saving is real only when the vial runs out inside that window.
Nothing on this page tells you what to take. Full walkthroughs live in the guides.
Rows sort on one number. There is no combined score and no weighting, so no vendor can be pushed up the table by a rating you cannot check.
Vendors that publish nothing stay in the table, marked. Taking them out would make the market look tidier than we found it.
Prices are read off public catalog pages and saved with the date. If a check runs late the row says so instead of showing an old price as current.
Commissioned links are marked on the row and listed on the disclosure page. They never move a listing up or down the table.
Prices on this site are read from vendor websites on the dates shown. A starting tag means the vendor publishes only a from price for that product. A wall means the seller hides the price behind an account, and we publish that fact rather than hide the gap.
We report prices and never rate or score an offer. There is no value grade, no ranking of vendors by our opinion. A row carries its size, its price, its price per milligram, and any plain fact about the listing worth knowing. Where a page shows picks, they are ordered by a fixed rule, published testing evidence first and then price per milligram, and the rule is the same for every vendor.
When a vendor's site disappears, its rows stay in the tables as a dated record, drop out of every count, price range and ranking, and lose their links. Ninety days after a vendor's site disappears, its rows leave these tables and remain in our records.
Some vendors pay this site a commission when you buy through our links. Every one of those links is marked, and every vendor with that arrangement is labeled on the vendor page. Commissions never change the prices we show, the order of any table, a vendor's badge, or anything in the audit record. The data is collected the same way for every vendor, paid or not.
We accept no payment for coverage, placement, or ratings. Warning letters come from fda.gov. If a paying vendor earns a bad mark, the mark stays.
The most-sold size, 10 mg, runs $12.00 to $110.00 a vial across 9 vendors, with a median of $53.75. Across 40 vendors it typically runs $2.45 to $9.00 per milligram, with the cheapest sticker price at $10.00. Prices exclude shipping, card fees, and bacteriostatic water.
Vial size, sale cycles, payment method discounts, and how much testing evidence a seller publishes all move the number. A cheap milligram is only cheap if the vial holds what the label claims, which no price column can tell you.
Sorting never reads whether a vendor pays us. Any commissioned link is marked on the row and listed on the disclosure page, and it never changes where a listing lands in the table.
Oral B12 is a supplement. Injectable cyanocobalamin is an approved prescription product, and a research-labelled vial sold online is not that product.
Every price is read off a public catalog page and stored with its date; this compound was last read Nov 7, 2026. Nothing is overwritten, so a stale row says so rather than pretending to be current.
