American Peptide Research is a US research-peptide vendor based in Englewood, New Jersey that lists 44 injectable peptides, including Thymosin Alpha-1, FOXO4-DRI and TB-500. Across 44 products with a market median, its prices sit 51% above the median for the same peptide and vial size; it is the cheapest vendor we track on Adipotide, and pricier on GHRP-6 and GHRP-2. 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. It does not accept returns.
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 35 indexed documents
current certificates, by the date printed on them
Janoshik Analytical signs the most of them
oldest Mar 20, 2025
The site names Horizon Analytical as its testing lab. These are the vendor’s own flags, not our measurements.
States it has been a trusted USA supplier for 8 years with COAs verified by Horizon Analytical, covering purity and endotoxin testing per product.
$7.60/mg median
▼ 1%
Median price per mg across American Peptide Research’s 4-45 priced listings, from Jul 17 ($7.70/mg) to Oct 14 ($7.60/mg) over 35 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.
1 of American Peptide Research’s tracked listings changed price in the last 30 days: 1 down, 0 up.
Listed prices at American Peptide Research 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 1 of 36 comparable listings, above it on 35. Typical listing: 51% above market. Showing the 6 largest differences.
International
51% above
vs market median
42
peptides
Partial
in-stock products
Oct 14
International
3% above
vs market median
52
peptides
Partial
in-stock products
Oct 14
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
American Peptide Research sits 51% above market the tracked market median on matched peptide/size rows. The catalog in this index is smaller than Nationwide Peptides's. On COA coverage, American Peptide Research rates partial and Nationwide Peptides rates partial. 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 American Peptide Research. We found certificates for around some of the in-stock products we track. Those certificates were signed by 1 lab, the newest tested June 25, 2025. 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 June 25, 2025. Based on the certificates our crawler found; vendors may publish more than we index. Their own testing page is at https://www.americanpeptideresearch.net/coa. A certificate on file records what a document says; it cannot prove chain of custody or what is in the vial you receive.
American Peptide Research states that orders ship from Englewood, New Jersey, US. This is what the vendor says about itself, not something we have verified.
We have not recorded a shipping cost for American Peptide Research. Orders over $200 are listed as shipping free. Checkout is the only place these figures are binding.
At the time we recorded it, American Peptide Research 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 American Peptide Research. 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 44 graded products, American Peptide Research's median price per mg sits 50.9% above the median for the same peptide at the same vial size. We track 42 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 American Peptide Research, COA coverage rates partial. The public index contains 35 documents. Reported test dates in this set run from Mar 20, 2025 through Jun 25, 2025. That rating covers the full tracked catalogue for American Peptide Research, 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 · 0 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
X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry.
Document check: fail.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
BP 10/2025-06
Document grade
X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry.
Document check: fail.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
GK50/2025-08
Document grade
X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry.
Document check: fail.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
KP10/2025-06
Document grade
X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry.
Document check: fail.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
RT10/2025-06
Document grade
X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry.
Document check: fail.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
SK11/2025-06
Document grade
X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry.
Document check: fail.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
XA11/2025-06
Document grade
X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry.
Document check: fail.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
TB10/2025-06
Document grade
X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry.
Document check: fail.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
TM 10/2025-06
Document grade
X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry.
Document check: fail.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
MS10/2025-05
Document grade
X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry.
Document check: fail.
Lab record: not confirmed.
Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2
IP10/2025-04
| COA grade | Printed lab | Certificate | |||
|---|---|---|---|---|---|
| BPC-157 Lot: BP 10/2025-06 | Document grade Why this result?X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry. Document check: fail. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | JANOSHIK | Jun 25, 2025 | 99.451%99.0–99.49% | View COA |
| GHK-Cu Lot: GK50/2025-08 | Document grade Why this result?X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry. Document check: fail. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | JANOSHIK | Jun 25, 2025 | 99.45%99.0–99.49% | View COA |
| KPV Lot: KP10/2025-06 | Document grade Why this result?X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry. Document check: fail. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | JANOSHIK | Jun 25, 2025 | 99.451%99.0–99.49% | View COA |
| Retatrutide Lot: RT10/2025-06 | Document grade Why this result?X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry. Document check: fail. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | JANOSHIK | Jun 25, 2025 | 99.521%99.5%+ | View COA |
| Selank Lot: SK11/2025-06 | Document grade Why this result?X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry. Document check: fail. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | JANOSHIK | Jun 25, 2025 | 99.875%99.5%+ | View COA |
| Semax Lot: XA11/2025-06 | Document grade Why this result?X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry. Document check: fail. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | JANOSHIK | Jun 25, 2025 | 99.49%99.0–99.49% | View COA |
| TB-500 Lot: TB10/2025-06 | Document grade Why this result?X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry. Document check: fail. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | JANOSHIK | Jun 25, 2025 | 99.451%99.0–99.49% | View COA |
| Tesamorelin Lot: TM 10/2025-06 | Document grade Why this result?X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry. Document check: fail. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | Janoshik | Jun 25, 2025 | 99.451%99.0–99.49% | View COA |
| MOTS-c Lot: MS10/2025-05 | Document grade Why this result?X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry. Document check: fail. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | JANOSHIK | May 15, 2025 | 99.753%99.5%+ | View COA |
| Ipamorelin Lot: IP10/2025-04 | Document grade Why this result?X2: The certificate shows no identity test, so there is no evidence the vial contains the peptide on the label. Ask the vendor for a report that confirms identity by mass spectrometry. Document check: fail. Lab record: not confirmed. Graded Oct 14, 2026 · Grader 0.4.9 · Policy 2026-10-07.2 | JANOSHIK | Apr 16, 2025 | 99.76%99.5%+ | View COA |
31 current records
5AM/2025-06
FR5/2025-06
BP 10/2025-06
GK50/2025-08
G25/2025-06
G610/2025-06
KP10/2025-06
MT2-10/2025-06
RT10/2025-06
SK11/2025-06
XA11/2025-06
TB10/2025-06
TM 10/2025-06
TH10/2025-06
CD5/2025-05
GTT/2025-05
KS10/2025-05
375/2025-05
PI10/2025-05
SN10/2025-05
NJ500/2025-05
DS10/2025-05
ET10/2025-05
IG1/2025-05
MS10/2025-05
2S10/2025-05
IP10/2025-04
SM5/2025-04
SL5/2025-04
TY10/2025-04
TZ10/2025-03
| Printed lab | Certificate | |||
|---|---|---|---|---|
| 5-Amino-1MQ | JANOSHIK | Jun 25, 2025 | 99.451%99.0–99.49% | View COA |
| AOD-9604 | JANOSHIK | Jun 25, 2025 | 99.45%99.0–99.49% | View COA |
| BPC-157 | JANOSHIK | Jun 25, 2025 | 99.451%99.0–99.49% | View COA |
| GHK-Cu | JANOSHIK | Jun 25, 2025 | 99.45%99.0–99.49% | View COA |
| GHRP-2 | JANOSHIK | Jun 25, 2025 | 99.385%99.0–99.49% | View COA |
| GHRP-6 | JANOSHIK | Jun 25, 2025 | 99.246%99.0–99.49% | View COA |
| KPV | JANOSHIK | Jun 25, 2025 | 99.451%99.0–99.49% | View COA |
| Melanotan II | JANOSHIK | Jun 25, 2025 | 99.451%99.0–99.49% | View COA |
| Retatrutide | JANOSHIK | Jun 25, 2025 | 99.521%99.5%+ | View COA |
| Selank | JANOSHIK | Jun 25, 2025 | 99.875%99.5%+ | View COA |
| Semax | JANOSHIK | Jun 25, 2025 | 99.49%99.0–99.49% | View COA |
| TB-500 | JANOSHIK | Jun 25, 2025 | 99.451%99.0–99.49% | View COA |
| Tesamorelin | Janoshik | Jun 25, 2025 | 99.451%99.0–99.49% | View COA |
| Thymalin | JANOSHIK | Jun 25, 2025 | 99.45%99.0–99.49% | View COA |
| CJC-1295 (with DAC) | JANOSHIK | May 28, 2025 | 99.016%99.0–99.49% | View COA |
| Glutathione | JANOSHIK | May 28, 2025 | 99.924%99.5%+ | View COA |
| Kisspeptin-10 | JANOSHIK | May 28, 2025 | 99.544%99.5%+ | View COA |
| LL-37 | JANOSHIK | May 28, 2025 | 99.53%99.5%+ | View COA |
| Pinealon | JANOSHIK | May 28, 2025 | 99.05%99.0–99.49% | View COA |
| SNAP-8 | JANOSHIK | May 28, 2025 | 99.299%99.0–99.49% | View COA |
| NAD+ | JANOSHIK | May 17, 2025 | 99.016%99.0–99.49% | View COA |
| DSIP | JANOSHIK | May 15, 2025 | 99.713%99.5%+ | View COA |
| Epitalon | JANOSHIK | May 15, 2025 | 99.56%99.5%+ | View COA |
| IGF-LR3 | JANOSHIK | May 15, 2025 | 99.82%99.5%+ | View COA |
| MOTS-c | JANOSHIK | May 15, 2025 | 99.753%99.5%+ | View COA |
| SS-31 | JANOSHIK | May 15, 2025 | 99.219%99.0–99.49% | View COA |
| Ipamorelin | JANOSHIK | Apr 16, 2025 | 99.76%99.5%+ | View COA |
| Sermorelin | JANOSHIK | Apr 16, 2025 | 99.76%99.5%+ | View COA |
| SLU-PP-332 | JANOSHIK | Apr 16, 2025 | 99.76%99.5%+ | View COA |
| Thymosin Alpha-1 | Janoshik | Apr 16, 2025 | 99.76%99.5%+ | View COA |
| Tirzepatide | JANOSHIK | Mar 20, 2025Older record | 99.812%99.5%+ | View COA |
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. American Peptide Research peptide prices, COA coverage and vendor facts. Updated October 14, 2026. https://www.thepeptide.app/pricing/vendor/american-peptide-research
The Peptide App. (2026). American Peptide Research peptide prices, COA coverage and vendor facts. Retrieved from https://www.thepeptide.app/pricing/vendor/american-peptide-research
Prices and certificate counts on this page were last refreshed October 14, 2026.
