B-12
18 vendors · 2 sizes · $1.50–$9.90 per mg at 10mg · observed Sep 1–Sep 19
2 of the 18 sellers we assessed publish a certificate for the batch they ship.
"Third-party tested" is a claim about who tested it. A certificate you can open is a document. Only the second is counted here.
At 10mg
How this is ordered Grouped by what each seller publishes about testing, strongest first, and cheapest first inside every group. Nobody is left out — the cheapest sellers on this page are in the last group. Sort by price instead →
Shows you a certificate for the batch COA 2 of 14 sellers we read
The listing publishes a test certificate, or promises one per batch. This is the only group where a document exists to open.
Nothing about testing in the listing none 12 of 14 sellers we read
We found no mention of testing on the page we read. That is a fact about this listing and not about the seller — they may publish certificates somewhere we have not looked.
| Vendor | Price | Per mg | |
|---|---|---|---|
| Bulkpeptidesupply Sep 17 | $15.00 | $1.50 | visit |
| Mammothmusclepeptides Sep 17 | $18.00 | $1.80 | visit |
| Mpeptidesscience Sep 19 | $18.00 | $1.80 | visit |
| Eliteedgebiotech Sep 17 | $23.00 | $2.30 | visit |
| S1research Sep 18 | $29.99 | $3.00 | visit |
| Ionpeptide Sep 16 | $35.00 | $3.50 | visit |
| Happypeptides Sep 17 | $36.00 | $3.60 | visit |
| Flatironsrc Sep 17 | $38.00 | $3.80 | visit |
| Steadymeds Sep 18 | $40.00 | $4.00 | visit |
| Penguinpeptides Sep 18 | $44.00 | $4.40 | visit |
| Peptideplugs Sep 18 | $50.00 | $5.00 | visit |
| Glacieraminos Sep 19 | $98.96 | $9.90 | visit |
Not read yet
We have not read these listings for test results. Their absence from the groups above says nothing about them.
| Vendor | Price | Per mg | |
|---|---|---|---|
| Olympiapeptides Sep 2 | $37.50 | $3.75 | visit |
Sellers of B-12 also list
Want to be told when B-12 moves? Watch this price → We haven't started sending these yet — this is us finding out whether anybody wants them.