PeptidePrices safety rating
10/10 · FDA-approved
Vitamin B12 Prices
8 vendors · 0 with an issuer-verified COA · lowest 10mg from $18.70 · checked
Where to buy Vitamin B12: 8 vendors compared
| Vendor | Price | Actions |
|---|---|---|
| $18.70 | Buy Vitamin B12 from Hacker Peptides | |
| $26.99 | Buy Vitamin B12 from Step One Ventures | |
| 3-test panelCOA on fileVanguard Laboratory | $27.35 | Buy Vitamin B12 from T-Core Biotech |
| $31.50 | Buy Vitamin B12 from American Amino & Peptides | |
| $34.00 | Buy Vitamin B12 from Peptide Maxxing | |
| $45.00 | Buy Vitamin B12 from Peptides For Less | |
| $297.16 | Buy Vitamin B12 from Anglo Peptides | |
| $29.99Package size not listedChecked Sep 21 | Buy Vitamin B12 from Pro Research Peptide |
Tracked every day
Vitamin B12 listing prices, tracked daily
The five cheapest in-stock package prices for Vitamin B12 on each collected day, and the vendors that most often held those places.
Five cheapest in-stock package prices per day
Listed package price before coupons, any vial size. This is not the coupon-adjusted lowest 10mg price used to rank the comparison.
- Cheapest$29.99
- 2nd cheapest$34.19
- 3rd cheapest$35.00
- 4th cheapest$40.00
Vendors most often in the cheapest five
- T-Core Biotech21 days$34.190.0%
- Step One Ventures15 days$29.990.0%
- Peptide Maxxing9 days$40.000.0%
- American Amino & Peptides3 days$35.000.0%
Current market data
Vitamin B12 Price Report
A current summary of public listings after the price comparison above. Shipping and tax are not included.
The lowest current 10mg cost for Vitamin B12 is $18.70 from Hacker Peptides. The median across vendors is $31.50.
- Lowest 10mg cost
- $18.70Hacker Peptides
- Median 10mg cost
- $31.50One normalized offer per vendor
- Lowest package total
- $4.50Peptides For Less · package size may differ
- Public COA coverage
- 88%7 of 8 vendors
What the market shows
PeptidePrices found 10 in-stock listings from 8 vendors, checked through Oct 9, 2026. The lowest 10mg cost is 41% below the vendor median of $31.50; 3 vendors (43%) fall below that median. 7 of 8 vendors (88%) publish public COA evidence.
A public COA link shows that a vendor publishes testing data. It does not prove that every listed vial has a matching current report. Match the product, strength, batch, and lot before relying on a report.
How this report is calculated
The headline and median use each vendor's lowest whole-package checkout cost to obtain at least 10mg. Smaller packages are multiplied until the target is met, while larger packages retain their full checkout price. The lowest package total is shown only as secondary context because package sizes differ. Known public coupon discounts are applied. Shipping, tax, and unverified promotions are excluded.
Research context
What is Vitamin B12? Research, safety, and status
Vitamin B12 at a glance
Mechanism
Essential water-soluble vitamin; cofactor for methionine synthase and methylmalonyl-CoA mutase; critical for DNA synthesis, myelin formation, red blood cell production, and neurological function.
Research areas
B12 deficiency; energy enhancement; neurological support; anemia treatment; methylation support; often added to peptide protocols as adjunct; cognitive enhancement; injectable has far superior bioavailability vs oral.
Regulatory / research status
Research / preclinical only
Half-life
~6 days (cobalamin in plasma). Weekly to monthly injections for maintenance.
Storage
Lyophilized vial: store at -20°C long-term or 2-8°C short-term, protected from light.
Reported side effects
Extremely safe. Essentially no toxicity.
Decades of use; essentially zero risk; rare allergic reaction; essential medicine; water-soluble vitamin Safety ratings summarize published clinical data, adverse-event reporting, and regulatory status. How PeptidePrices rates evidence. Research information only, not medical advice.
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