49 suppliers scored7 FDA warning letters tracked8 closures on recordUpdated October 2026 · How scoring works
Peptide Ranking

Research Peptides review

researchpeptides.com
OperatingRank #41 of 49Updated 2026-10-19

Verdict. Research Peptides posts certificate files in public and takes cards, but the files carry no lot numbers or dates, the laboratory that produced them belongs to the company itself, and the business is registered in Panama with no address or phone. The documents exist but cannot be traced to a batch, and the company behind them cannot be located.

Third-party testingNo
Public certificatesYes
Lot-specificNot verified
Reference priceNo like-for-like

Who they are and what we checked

Research Peptides runs a 27-product store branded “Research Peptides(TM)” that sells lyophilized vials and blends to US addresses only. Its Shipping and Payments page states that the company is registered in Panama, its Trustpilot profile lists its location as Tunisia, and no physical address or phone number appears anywhere on the site, so the headquarters is recorded as unknown and the founding year is not stated. The one thing to know before anything else is that this company tests its own products in its own laboratory and publishes certificates that cannot be tied to a batch.

We read the homepage, the COA page, the about page, the shipping and payments page, all three catalog pages and the BPC-157 product page, and we checked the Trustpilot profile. Everything below comes from those pages or from public records.

What the certificate page actually shows

A public COA page exists at /coa/, and it opens without an account. It holds 28 files covering 17 of the 27 catalog products. That is where the good news ends. None of the files carries a lot or batch number, none carries a test date, and several products are represented only by a file labeled “Endo” with no purity report alongside it. A certificate without a lot number or a date cannot be matched to the vial in a buyer’s hand, and a certificate labeled only “Endo” tells the reader nothing about identity or purity. For a buyer trying to confirm that a specific product is what the label says, these files do not do the job.

The testing itself is in-house. The site describes its own analytical laboratory running HPLC and mass spectrometry under a “99.9% Purity USA TESTED” banner, and no independent laboratory is named anywhere in the record. We class third-party testing as absent. Endotoxin and sterility coverage is undocumented beyond the unlabeled “Endo” files. The about page claims partnerships with WHO/GMP and ISO 9001:2015 certified manufacturers, which is a statement about the company’s suppliers rather than a certification the company holds, and it should not be read as one.

The company, the prices and the fine print

The Panama registration and Tunisia review-profile location are the only geographic clues the record contains, and they do not agree with each other or with the “USA TESTED” banner. The Trustpilot profile shows a single review. An alternative domain, researchpeptides.net, is described in a promotional Steemit post as a US supplier; it failed to load on two attempts and could not be verified. We found no FDA warning letter naming this vendor; a December 2024 letter to Summit Research Peptides concerns a different company. The homepage carried a “This Site Is Undergoing Maintenance” banner when we fetched it.

A research-use-only disclaimer is present, but product pages also carry health claims beside it. We note that as a compliance observation without repeating the claims; a supplier that labels its materials for research and then describes them in other terms is sending two messages at once.

Pricing is mid-market. BPC-157 10 mg is $68.99, the BPC-157 / TB-500 Blend at 5 mg/5 mg is $84.99, Thymosin Beta-4 (TB-500) 10 mg is $99.99 and Ipamorelin 10 mg is $72.99. BPC-157 is not sold as a single 5 mg vial, so no benchmark price exists. Other listings include CJC-1295 No DAC, GHK-Cu, SS-31 (Elamipretide), NAD+ and Sermorelin. The homepage featured items named GLP-1, GLP-2 and GLP-3 with no expansion; the three catalog pages did not list them, and we quote the names only as they appeared.

Shipping is US-only by USPS, FedEx or UPS, with orders typically processed within 1 to 3 business days after payment verification. The ship-from location is not stated. Payment is by major credit and debit card, which is the record’s clearest positive, since card payment gives a buyer a dispute route the policies do not. No free-shipping threshold is stated.

All sales are final. Returns are accepted only for defective or incorrect products reported within 7 days of receipt, with approved refunds to the original payment method within 7 to 10 business days, and non-delivery claims must be filed within 14 days of the order date. No guarantee is stated.

Set against the field, Research Peptides illustrates a distinction we draw often: a certificate page is not the same as a certificate library. The page exists and opens, which is more than several suppliers manage. But the files on it lack the three things that make a certificate useful, a lot number, a date and an outside laboratory’s name, and several are labeled only “Endo.” In practice a reader finishes the page knowing that the company has run some tests on some material at some time, which is roughly what the “99.9% Purity USA TESTED” banner already told them. The documents add almost nothing to the claim.

The geographic confusion deserves the same plain reading. A Panama registration, a Tunisia review-profile location, a “USA TESTED” banner and US-only shipping are four signals that do not describe one company. Any of them may be accurate; together they tell a buyer that the question of who they are paying has no clear answer on this site.

Bottom line

Research Peptides takes cards and posts certificate files in public, and those are the two things it does that we can credit. The files have no lot numbers and no dates, the laboratory that produced them belongs to the company itself, the business is registered in Panama with no address or phone, the product pages carry claims that sit uneasily beside the research-use disclaimer, and nothing can be returned. A buyer who only needs a card-paid order of a common peptide at a mid-market price might accept all that. A buyer who needs to trace a document to a batch, or to know who they are dealing with, will find neither here.

What we liked

  • A public COA page at /coa/ holds 28 files covering 17 of the 27 catalog products, and the files open without an account.
  • Major credit and debit cards are accepted, which gives a buyer a dispute route the policies do not.
  • Orders are typically processed within 1 to 3 business days and ship by USPS, FedEx or UPS.

What we would want fixed

  • Testing is in-house by HPLC and mass spectrometry, and no independent laboratory is named anywhere in the record.
  • The certificate files carry no lot or batch numbers and no test dates, and several products are represented only by a file labeled 'Endo'.
  • The Shipping and Payments page states the company is registered in Panama, and no physical address or phone appears on the site.
  • The Trustpilot profile lists the company's location as Tunisia and holds a single review.
  • Product pages carry health claims beside the research-use disclaimer, and all sales are final.

Catalog and pricing

27 listings indexed from researchpeptides.com on 2026-10-19. Price per mg uses the stated mass; pens are shown without a per-mg figure.

ListingPeptideSizePrice$/mgCOA
Glutathione 1500mg
vial
Glutathione1500 mg$84.99$0.06YesView
NAD+ 1000mg
vial
NAD+1000 mg$150$0.15YesView
GHK-Cu 100mg
vial
GHK-Cu100 mg$103$1.03YesView
GHK Cu 50mg / BPC-157 10mg / TB-500 10mg Blend
blend
other70 mg$122$1.74YesView
GHK Cu 50mg / BPC-157 10mg / TB-500 10mg / KPV 10mg Blend
blend
other80 mg$165$2.06YesView
ARA-290 16mg
vial
other16 mg$49.99$3.12YesView
SS-31 (Elamipretide) 50mg
vial
SS-3150 mg$180$3.60YesView
Semax 10mg
vial
Semax10 mg$37.99$3.80YesView
Melanotan II 10mg
vial
Melanotan II10 mg$37.99$3.80YesView
PT-141 10mg
vial
PT-14110 mg$44.99$4.50YesView
Selank 10mg
vial
Selank10 mg$47.99$4.80YesView
Epithalon 10mg
vial
Epitalon10 mg$48.99$4.90YesView
MOTS-C 10mg
vial
MOTS-c10 mg$57.99$5.80YesView
KPV 10mg
vial
KPV10 mg$59.99$6.00YesView
BPC-157 10mg
vial
BPC-15710 mg$68.99$6.90YesView
Ipamorelin 10mg
vial
Ipamorelin10 mg$72.99$7.30YesView
CJC 1295 No DAC - Ipamorelin Blend 5mg/5mg
blend
CJC-1295 + Ipamorelin blend10 mg$78.99$7.90YesView
Thymosin Alpha 1 10mg
vial
Thymosin Alpha-110 mg$83.99$8.40YesView
BPC-157 5mg TB-500 5mg Blend
blend
BPC-157 + TB-500 blend10 mg$84.99$8.50YesView
Tesamorelin 10mg
vial
Tesamorelin10 mg$84.99$8.50YesView
DSIP 5mg
vial
DSIP5 mg$42.99$8.60YesView
5 Amino 1MQ 4mg
vial
5-Amino-1MQ4 mg$39.99$10.00YesView
Sermorelin 10mg
vial
Sermorelin10 mg$99.99$10.00YesView
Thymosin Beta-4 (TB-500) 10mg
vial
TB-50010 mg$99.99$10.00YesView
CJC-1295 No DAC 5mg
vial
CJC-1295 (no DAC)5 mg$51.99$10.40YesView
LL-37 5mg
vial
LL-375 mg$64.99$13.00YesView
Cagrilintide 5mg
vial
Amylin-analog class listings5 mg$74.99$15.00YesView

Public certificates on file

15 certificates indexed (the supplier's own index shows about 28) · supplier's certificate page ↗.

ProductLotLaboratoryDatePurityMethod
BPC-157 10mgB25M835Vanguard Laboratory2025-08-0199.04%HPLCOpen
Thymosin Beta-4 (TB-500) 10mg—Not named———Open
GHK-Cu 100mg—Not named———Open
Ipamorelin 10mg—Not named———Open
CJC-1295 No DAC 5mg—Not named———Open
Sermorelin 10mg—Not named———Open
Tesamorelin 10mg—Not named———Open
MOTS-C 10mg—Not named———Open
Semax 10mg—Not named———Open
Selank 10mg—Not named———Open
Epithalon 10mg—Not named———Open
PT-141 10mg—Not named———Open
Melanotan II 10mg—Not named———Open
DSIP 5mg—Not named———Open
Thymosin Alpha 1 10mg—Not named———Open

The data behind this review

Everything above rests on these fields. Each one is what the supplier states on its own pages, or "not verified".

Score breakdown

Testing & certificates30% weight22
Documentation depth15% weight10
Transparency20% weight40
Track record10% weight6
Catalog10% weight63
Pricing7% weight60
Ordering & service8% weight65
Weighted total32

Verification checklist

  • Third-party laboratory testingFail
  • Certificates of analysis open to the publicPass
  • Certificates tied to a specific lotNot verified
  • Testing laboratory namedFail
  • Research-use-only disclaimer presentPass
  • No FDA warning letter on recordPass
  • Identifiable company (address or phone)Fail
  • Currently operatingPass
Full fact sheet
Websiteresearchpeptides.com
StatusOperating
Based inNot stated
FoundedNot stated
Third-party testingNo
Laboratories namedNone named
Certificates publicYes — view
Lot-specific certificatesNot verified
Methods shownHPLC, Mass spectrometry
Catalog size≈27 listings
Formatsvials, blends
Price tiermid
Free shipping fromNot stated
Ships from / abroadunknown / No
Payment methodscard
Certifications claimedpartnerships with WHO/GMP and ISO 9001:2015 certified manufacturers
Research-use disclaimerYes
ContactNo public contact details found

Compare Research Peptides

Frequently asked questions

Is Research Peptides third-party tested?

No. The site describes its own in-house analytical laboratory running HPLC and mass spectrometry under a '99.9% Purity USA TESTED' banner. No independent laboratory is named anywhere in the record, so we class third-party testing as absent.

Where is Research Peptides located?

The Shipping and Payments page says the company is registered in Panama. No physical address or phone number appears on the site, the Trustpilot profile lists Tunisia, and the headquarters is recorded as unknown.

Does Research Peptides publish COAs?

Yes, 28 files for 17 products open from the public /coa/ page. But none carries a lot number or a test date, and several products have only an 'Endo' file rather than a purity report, so the documents cannot be matched to a specific vial.

Sources: researchpeptides.com · researchpeptides.com/coa/ · researchpeptides.com/about-us/ · researchpeptides.com/shipping-and-payments/ · researchpeptides.com/catalog/ · researchpeptides.com/catalog/page/2/ · researchpeptides.com/catalog/page/3/ · researchpeptides.com/product/bpc-157/. Spotted an error? Request a correction.