Peptide Plugs is a US research-peptide vendor based in Liberty Hill, TX that lists 43 injectable peptides, 1 capsule and 1 tablet, including NAD+, BPC-157 and MOTS-c. Across 40 products with a market median, its prices sit 18% below the median for the same peptide and vial size; it is the cheapest vendor we track on NAD+ and BPC-157, and pricier on SNAP-8 and 5-Amino-1MQ. We found certificates for around some of the in-stock products we track. Based on the certificates our crawler found; vendors may publish more than we index. Shipping is free over $200; it accepts card.
Facts extracted from the vendor’s site and not yet reviewed by us.
COA coverage: Partial
We found certificates for around some of the in-stock products we track. Based on the certificates our crawler found; vendors may publish more than we index.
from 45 indexed documents
current certificates, by the date printed on them
Freedom Diagnostics signs the most of them
oldest Apr 12, 2026
The site names Freedom Diagnostics as its testing lab. These are the vendor’s own flags, not our measurements.
Peptide Plugs states "Every batch third-party tested. Every COA publicly available," with Freedom Diagnostics-verified COAs from mass spec plus HPLC testing on every SKU, and an average purity of 99.7%.
$4/mg median
Unchanged
Median price per mg across Peptide Plugs’s 37-48 priced listings, from Jul 17 ($4/mg) to Oct 14 ($4/mg) over 86 observed days. The mix of products behind the median changes as listings come and go, so this tracks the catalog as well as the prices.
15 of Peptide Plugs’s tracked listings changed price in the last 30 days: 14 down, 1 up. Showing the 8 most recent.
Listed prices at Peptide Plugs against the median price per mg for the same peptide at the same vial size, across every vendor we track. Vendors change prices without notice, so check the current listing before you order.
Below the market median on 23 of 34 comparable listings, above it on 7. Typical listing: 15% below market. Showing the 6 largest differences.
International
18% below
vs market median
45
peptides
Partial
in-stock products
Oct 14
International
At median
vs market median
60
peptides
Limited
in-stock products
Oct 12
International
8% above
vs market median
63
peptides
None found
in-stock products
Oct 14
International
5% above
vs market median
56
peptides
Limited
in-stock products
Oct 14
Peptide Plugs sits 18% below market the tracked market median on matched peptide/size rows. The catalog in this index is smaller than Nexgen Peptides's. On COA coverage, Peptide Plugs rates partial and Nexgen Peptides rates limited. Based on the certificates our crawler found; vendors may publish more than we index.
The honest comparison unit is price per mg on matched peptide/size rows. COA coverage is presence of a current indexed document, not purity-as-quality. See the Evidence Atlas and how to read a COA.
Evidence boundary: Listed prices, stock signals, and indexed COA documents are observations. They do not establish legitimacy, authenticity, safety, sterility, chain of custody, product quality, fulfillment, or suitability. No vendor is endorsed.
Pricing data cannot settle that question, and we do not test products or verify fulfillment. Here is the evidence we do hold for Peptide Plugs. We found certificates for around some of the in-stock products we track. Those certificates were signed by 2 labs, the newest tested July 25, 2026. Based on the certificates our crawler found; vendors may publish more than we index. We have been recording their prices since July 3, 2026. Read each certificate yourself, check that its lot and compound match what you are buying, and treat anything we have not recorded as unknown rather than as an answer.
We found certificates for around some of the in-stock products we track. The freshest was tested July 25, 2026. Based on the certificates our crawler found; vendors may publish more than we index. Their own testing page is at https://peptideplugs.com/coas/. A certificate on file records what a document says; it cannot prove chain of custody or what is in the vial you receive.
Peptide Plugs states that orders ship from Texas. They state that they do not ship internationally. This is what the vendor says about itself, not something we have verified.
We have not recorded a shipping cost for Peptide Plugs. Orders over $200 are listed as shipping free. Their shipping page is at https://peptideplugs.com/shipping-policy/. Checkout is the only place these figures are binding.
At the time we recorded it, Peptide Plugs listed credit or debit card. Peptide storefronts change processors often, so the options at checkout may differ from what we hold.
We have none on record for Peptide Plugs. When a code we can verify appears, it shows on this page and the prices here are adjusted for it; until then, every figure on this page is the list price.
Across 40 graded products, Peptide Plugs's median price per mg sits 17.5% below the median for the same peptide at the same vial size. We track 45 products from them in total. Price per mg is the comparison unit: a cheaper vial holding less is not a cheaper product.
Product documentation
Across the tracked peptide products we hold for Peptide Plugs, COA coverage rates partial. The public index contains 45 documents. Reported test dates in this set run from Apr 12, 2026 through Jul 25, 2026. That rating covers the full tracked catalogue for Peptide Plugs, including products that are currently out of stock, so it can differ from the in-stock rating above. Based on the certificates our crawler found; vendors may publish more than we index.
across the full tracked catalogue
current certificates, by the printed test date.
Printed date is over 18 months old.
Named on more current records than any other lab.
Certificate assessment
10 evaluated certificates
10 graded · 0 not graded · 10 in the A range.
The sample prioritizes up to ten popular peptides from this vendor. Grades assess the document and its reported tests, not the vendor’s whole catalog or the safety of a product.
Automated checks can make mistakes. Open “Why this result?” for the reason and any review notice, and check the linked COA’s lot against your product. How grading works
10 evaluated records
Document grade
B2: Identity, purity and amount are supported, and the lab's own records match this certificate.
Document check: flag.
Lab record: matched.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
161-6201-0K
Document grade
B2: Identity, purity and amount are supported, and the lab's own records match this certificate.
Document check: flag.
Lab record: matched.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
103-10-28
Document grade
B2: Identity, purity and amount are supported, and the lab's own records match this certificate.
Document check: flag.
Lab record: matched.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
160-04-DK
Document grade
B2: Identity, purity and amount are supported, and the lab's own records match this certificate.
Document check: flag.
Lab record: matched.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
160-670X-DL
Document grade
B2: Identity, purity and amount are supported, and the lab's own records match this certificate.
Document check: flag.
Lab record: matched.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
101-05-2B
Document grade
B2: Identity, purity and amount are supported, and the lab's own records match this certificate.
Document check: flag.
Lab record: matched.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
101-07-QB
Document grade
B2: Identity, purity and amount are supported, and the lab's own records match this certificate.
Document check: flag.
Lab record: matched.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
101-08-2B
Document grade
B2: Identity, purity and amount are supported, and the lab's own records match this certificate.
Document check: flag.
Lab record: matched.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
160-310X-DK
Document grade
B2: Identity, purity and amount are supported, and the lab's own records match this certificate.
Document check: flag.
Lab record: matched.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
148-04-DK
Document grade
B2: Identity, purity and amount are supported, and the lab's own records match this certificate.
Document check: flag.
Lab record: matched.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
148-03-OK
| COA grade | Printed lab | Certificate | |||
|---|---|---|---|---|---|
| BPC-157 Lot: 161-6201-0K | Document grade Why this result?B2: Identity, purity and amount are supported, and the lab's own records match this certificate. Document check: flag. Lab record: matched. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Freedom Diagnostics | Jul 25, 2026 | 99.55%99.5%+ | View COA |
| Ipamorelin Lot: 103-10-28 | Document grade Why this result?B2: Identity, purity and amount are supported, and the lab's own records match this certificate. Document check: flag. Lab record: matched. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Freedom Diagnostics | Jul 25, 2026 | 99.82%99.5%+ | View COA |
| MOTS-c Lot: 160-04-DK | Document grade Why this result?B2: Identity, purity and amount are supported, and the lab's own records match this certificate. Document check: flag. Lab record: matched. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Freedom Diagnostics Testing | Jul 25, 2026 | 99.55%99.5%+ | View COA |
| GHK-Cu Lot: 160-670X-DL | Document grade Why this result?B2: Identity, purity and amount are supported, and the lab's own records match this certificate. Document check: flag. Lab record: matched. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Freedom Diagnostics | Jul 16, 2026 | 99.84%99.5%+ | View COA |
| KPV Lot: 101-05-2B | Document grade Why this result?B2: Identity, purity and amount are supported, and the lab's own records match this certificate. Document check: flag. Lab record: matched. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Freedom Diagnostics | Jul 16, 2026 | 99.49%99.0–99.49% | View COA |
| Retatrutide Lot: 101-07-QB | Document grade Why this result?B2: Identity, purity and amount are supported, and the lab's own records match this certificate. Document check: flag. Lab record: matched. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Freedom Diagnostics | Jul 16, 2026 | 99.91%99.5%+ | View COA |
| TB-500 Lot: 101-08-2B | Document grade Why this result?B2: Identity, purity and amount are supported, and the lab's own records match this certificate. Document check: flag. Lab record: matched. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Freedom Diagnostics | Jul 16, 2026 | 99.33%99.0–99.49% | View COA |
| Tesamorelin Lot: 160-310X-DK | Document grade Why this result?B2: Identity, purity and amount are supported, and the lab's own records match this certificate. Document check: flag. Lab record: matched. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Freedom Diagnostics | Jul 16, 2026 | 99.86%99.5%+ | View COA |
| Selank Lot: 148-04-DK | Document grade Why this result?B2: Identity, purity and amount are supported, and the lab's own records match this certificate. Document check: flag. Lab record: matched. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Freedom Diagnostics Testing | Jul 4, 2026 | 99.82%99.5%+ | View COA |
| Semax Lot: 148-03-OK | Document grade Why this result?B2: Identity, purity and amount are supported, and the lab's own records match this certificate. Document check: flag. Lab record: matched. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Freedom Diagnostics | Jul 4, 2026 | 99.79%99.5%+ | View COA |
33 current records
161-6201-0K
103-11-28
160-05-DK
103-08-28
103-10-28
160-04-DK
Red Cap
160-710L-DK
101-03-2B
155-01-DK
160-670X-DL
160-07-DK
101-05-2B
101-12-2B
101-07-QB
160-450L-DK
101-08-2B
160-310X-DK
101-10-2B
148-04-DK
148-03-OK
142-01-DK
137-02-SM
140-01-DK
137-01-SM
129-01-L
129-01-SM
141-01-DK
138-01-SM
128-04-DK
DK-132-09
115-B-DK
112-U
A record appears on file after our pipeline identifies the document as a certificate of analysis and matches its printed compound to a catalog peptide. The record cannot prove authenticity, chain of custody, sterility, product safety, or suitability for use.
These are counts of documents in our index, and a coverage rating of what our crawler found. They do not grade vendor quality, legitimacy, or safety. Printed fields can contain transcription errors. “Older record” means the reported test date is more than 18 months old.
See the testing methodology and dataset, or compare this coverage against another vendor in the vendor comparison tool.
The Peptide App. Peptide Plugs peptide prices, COA coverage and vendor facts. Updated October 14, 2026. https://www.thepeptide.app/pricing/vendor/peptide-plugs
The Peptide App. (2026). Peptide Plugs peptide prices, COA coverage and vendor facts. Retrieved from https://www.thepeptide.app/pricing/vendor/peptide-plugs
Prices and certificate counts on this page were last refreshed October 14, 2026.
