Research Peptides Lab Review
Scored 6.14/10 on the published Peptide Source Review formula: lab credibility, shipping, pricing, operating history, and transparency.
- COAs on file
- 16
COAs on file
- Confirmed at the lab
- 16
Confirmed at the lab
- Products
- 18
Products
- Labs
- 1
Labs
6.14/ 10
Last scored
No testing cap
- Lab credibility and recency55%7.0 (show how this was scored)
- Shipping and refund20%6.5 (show how this was scored)
- Pricing15%5.5 (show how this was scored)
- Operating history5%2.2 (show how this was scored)
- Business transparency5%1.0 (show how this was scored)
Weights are fixed for every vendor. Select a row to see how it was scored.
Is Research Peptides Lab legit?
Research Peptides Lab scores 6.14 out of 10 (Fair, tied #57 of 100) as of October 24, 2026 and passes our testing gate: 16 of the 17 products we score carry a certificate, 16 confirmed with the issuing lab (a lab we grade A). Its strongest area is lab testing (7.0/10) and its weakest is transparency (1.0/10); its operating history on record covers over a year.
On lab evidence, the heaviest-weighted factor, Research Peptides Lab has independently verified third-party COAs, with COA work on record from Freedom Diagnostics Testing. Its lowest price per milligram in our data is on GHK-Cu (see the table below).
How this score was calculated
Every point below follows the published tables in our methodology, with the policy wording we scored and a link to where we read it. Evidence last checked October 22, 2026. Lab credibility is worked product by product from the certificates on file.
Lab credibility7.0/10
Each carried product (lab supplies excluded) is scored from the certificate on file for it, on the published lab rubric: 3 for a published certificate, then points for the laboratory, the verification key, the tests on the certificate and its purity, held to 0 to 10. A certificate that is self-issued, names no laboratory, or comes from a laboratory whose independence is not established scores a flat 2.0; a product with no certificate, a certificate the laboratory’s own record fails, or a posted copy that differs materially from the laboratory’s copy scores 0. Calculated on , the day this page was built; the date each certificate was tested is shown on its row.
- BPC-1578.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.268% (99.0% up to but not including 99.7%)
- TB-5008.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.437% (99.0% up to but not including 99.7%)
- GHK-Cu8.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.18% (99.0% up to but not including 99.7%)
- CJC-12958.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.07% (99.0% up to but not including 99.7%)
- Ipamorelin8.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Purity 99.856% (99.7% or higher)
- Selank8.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-01-07
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.583% (99.0% up to but not including 99.7%)
- Melanotan-20.0
No certificate on file for this product: scores 0, counted fully because it is one of the core products.
- Sermorelin5.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- −3.0Purity 96.709% (below 97.0%)
- Tesamorelin8.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.162% (99.0% up to but not including 99.7%)
- Retatrutide8.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Purity 99.965% (99.7% or higher)
- Tirzepatide8.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Purity 99.912% (99.7% or higher)
- Semaglutide8.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Purity 99.726% (99.7% or higher)
- PT-1418.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Purity 99.946% (99.7% or higher)
- AOD-96048.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-01-07
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Purity 99.724% (99.7% or higher)
- IGF-1 LR35.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- −3.0Purity 95.718% (below 97.0%)
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-01-07
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.423% (99.0% up to but not including 99.7%)
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-01-07
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- −1.5Purity 98.905% (97.0% up to but not including 99.0%)
Mean of 17 products: 123.5 ÷ 17 = 7.265.
- −0.30CLAIM Claims the certificates do not support (cap −0.3): Product pages say "Each batch verified by HPLC (≥99% purity)" but the sermorelin (Rese2512310169, 96.709%) and IGF-1 LR3 (Rese2512310162, 95.718%) certificates are below 99% and the pages still show "COA Verified ... ✓ PASS" (-0.1 each); the IGF-1 LR3 page also claims a "bioactivity assay for receptor binding" and both blend pages claim HPLC "for both components individually", while the certificates report one combined purity and no bioassay (-0.1). Also unsupported (not counted, cap reached): MT-2 page claims per-batch HPLC/MS with no certificate; GHK-Cu page claims ICP-MS copper content. Capped at -0.3.
7.265 − 0.300 = 6.965, rounded to 0.1: 7.0/10.
Testing gate: 16 of 17 products have a certificate from a directory laboratory (not tier D, not self-issued) with the key confirmed at the laboratory. That is at least half, so the vendor counts as third-party tested and no cap applies.
Shipping and refunds6.5/10
- +1
Returns and refunds
If your order arrives damaged, is incorrect, or fails to meet our published purity standards, we will replace or refund it
- +1
Lost or damaged parcels
If your order arrives damaged, is incorrect, or fails to meet our published purity standards, we will replace or refund it
- +1.5
Dispatch time
Orders placed before 2 PM EST ship the same business day.
- +1
Tracking on all orders
you'll receive a tracking confirmation email with: Tracking number and carrier information
- +1.5
Payment you can dispute
We accept major credit cards, Apple Pay, Google Pay, Cash App, and Zelle.
- +1
Shipping rates published
Free shipping is available on orders over [price].
- −0.5
Damage or loss report window under 48 hours
If you receive damaged or incorrect products: Contact us within 24 hours of delivery
Total +6.5: 6.5/10.
Pricing5.5/10
We compared Research Peptides Lab’s current single-vial prices on 17 products, each matched to the same product and milligrams per vial, with the median price of the other vendors. Its typical price (the median ratio across those products) is 20% above the market median (ratio 1.20), which the published scale maps to 5.5/10. checked
Operating history2.2/10
Counted from August 17, 2025, the earliest dated evidence of this business operating: 14.2 months as of October 22, 2026, which the published table maps to 2.2/10.
Start is the registration of researchpeptideslab.com on 2025-08-17; Wayback has no capture between registration and the first store capture (2025-12-27), so it was never shown parked. The site names no operating company.
- 2025-08-17 Domain registration: registration of the store domain rdap.verisign.com (opens in new tab)
- 2025-12-27 Archived copy: CDX: first capture of the domain is the store web.archive.org (opens in new tab)
- 2025-12-27 Archived copy: store with prices web.archive.org (opens in new tab)
- 2025-12-31 Certificate: Freedom search code with vendor prefix coas.freedomdiagnosticstesting.com (opens in new tab)
Transparency1.0/10
- 0
Legal entity named
none on terms, privacy, about, contact, compliance ('Research Peptides Lab' brand only)
- 0
- 0
- 0
Named owner or staff
about page names no one ('Since our founding, we've built a reputation...')
- 0
Dated terms with a governing law
'Last updated: 03/09/2026' but no governing-law clause (only 'governed by this Terms and Conditions of Use Agreement')
- +1.5
Testing lab named, certificates published
Every peptide independently tested by Freedom Diagnostics. ... Ipamorelin PASS Lot #170851-70-4 Accession 2512310174 ... Lab Freedom Diagnostics View COA
- −0.5
GLP products sold only under code names
GLP-3RT
The product page's visible heading, description and specifications do not name the compound.
Total +1: 1.0/10.
Shop Research Peptides Lab
- Rated 6.14/10 · Fair
- 16 COAs confirmed at the issuing lab
- Best value: GHK-Cu at $0.95/mg
Audit history and why the rating changed
We re-audit vendors against their live COAs and site. Here is what most recently moved this rating, and why.
See the full score history and chart
- Most recent audit · 6.15to6.14
Pricing recomputed on 24 October 2026 after Bionova Peptides' first-review prices were recorded; other vendors move only through the market medians: pricing 5.6 to 5.5.
- Audit · 6.14to6.15
Pricing recomputed on 24 October 2026: listings added for newly reviewed vendors moved the market median for the same products: pricing 5.5 to 5.6.
- Audit · 6.15to6.14
Pricing recomputed on 23 October 2026 under the revised rule E1 (standing offers), which prices a size at the lowest total a buyer can pay without a code under standing prices, so a standing offer that includes a second vial at no extra cost now counts at all the milligrams received, in the vendor's own price and in the market medians for the same products: pricing 5.6 to 5.5.
Earlier audits (6)
- Audit · 6.18to6.15
Pricing recomputed on 23 October 2026 from current listings with the published rule (section E), after listings added or updated since 22 October, including a newly reviewed vendor's, moved the market median for the same products: pricing 5.8 to 5.6.
- Audit · 6.16to6.18
Operating history re-checked on 22 October 2026 under the published rule (earliest dated evidence of the business, including a never-parked store domain and the named operating company, looked up for every vendor): operating history 1.7 to 2.2.
- Audit · 5.98to6.16
Re-scored on 22 October 2026 under the published rulebook, which now gives one rule for each judgement call and applies it to every vendor: shipping and refunds 5.5 to 6.5, transparency 1.5 to 1.0.
- Audit · 5.71to5.98
Every listed product read and its certificate confirmed at the issuing laboratory on 22 October 2026 (the site was previously unreadable to our tools), so the lab score now follows our published lab rule. Lab 6.5 to 7.0.
- Audit · 6.14to5.71
Re-scored on 22 October 2026 under our published rubric for shipping, pricing, operating history and transparency, applied to every vendor the same day: prices re-read from the vendor's site and matched by milligrams per vial, operating history from the earliest dated evidence of the business, and policies scored item by item. shipping and refunds 5.8 to 5.5, pricing 7.8 to 5.8, operating history 2.2 to 1.7, transparency 2.5 to 1.5.
- Audit · 5.66to6.14
Re-audit, read through a customer account because the catalog and certificate library are now behind registration. Lab rises from 5.17 to 6.5: all 23 Freedom Diagnostics certificates were verified at the laboratory, covering nearly the whole catalog, but they are identity and purity only, 9 to 12 months old, carry chemical registry numbers instead of batch codes, and the three below 99% are not shown on their product pages. Shipping falls from 7.2 to 5.8 because the 60-day money-back guarantee credited in May is gone and damage must be reported within 24 hours. Pricing rises from 7.2 to 7.8 on live standard prices about 17% above the market median. Tenure 2.0 to 2.2. Transparency falls from 4.0 to 2.5: no company, address or phone is published.
Editor’s notes
Research Peptides Lab backs most of its catalog with Freedom Diagnostics certificates, and the 23 in its library all check out at the laboratory, with Research Peptides Lab named as the client and the same purity figures. They cover identity and purity only, with no endotoxin or sterility testing, and they date from October 2025 to January 2026. Each certificate gives the compound's chemical registry number or a cap colour where a batch code would go, so none can be tied to a specific production lot. The BPC-157 and TB-500 blend (98.9%), sermorelin (96.7%) and IGF-1 LR3 (95.7%) each showed a certificate on their product page on 22 October 2026, despite a stated 99% purity guarantee. Melanotan II has no certificate. The catalog and certificates are visible only after creating an account. Prices run somewhat above the market median on most products we compared. There are no returns; damaged or incorrect items must be reported within 24 hours, and lost parcels are not addressed in the policy. Cards are accepted. The site names no company, address or phone number, and the domain dates from August 2025.
Research Peptides Lab COAs and lab test results
One row per product: the certificate on file and how the lab rule reads it, the laboratory that issued it and its tier, the date it was tested, the purity it reports, and the lowest price per milligram we recorded (per IU or mL where a product is sold that way).
Freedom Diagnostics TestingTier Atested
- Purity
- 99.268%
- Price per mg
- $6.25$250.00 / 40mgbest of 2 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.437%
- Price per mg
- $6.50$65.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.18%
- Price per mg
- $0.95$95.00 / 100mgbest of 2 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.07%
- Price per mg
- $10.00$50.00 / 5mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.856%
- Price per mg
- $8.00$80.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.583%
- Price per mg
- $6.00$60.00 / 10mg
- Purity
- —
- Price per mg
- $7.00$70.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 96.709%
- Price per mg
- $10.00$50.00 / 5mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.162%
- Price per mg
- $7.75$155.00 / 20mgbest of 2 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.965%
- Price per mg
- $5.75$230.00 / 40mgbest of 4 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.912%
- Price per mg
- $4.67$140.00 / 30mgbest of 5 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.726%
- Price per mg
- $9.50$190.00 / 20mgbest of 3 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.946%
- Price per mg
- $5.50$55.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.724%
- Price per mg
- $10.00$50.00 / 5mg
Freedom Diagnostics TestingTier Atested
- Purity
- 95.718%
- Price per mg
- $50.00$50.00 / 1mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.423%
- Price per mg
- $27.00$135.00 / 5mg
- Purity
- —
- Price per mL
- $1.50$15.00 / 10 mL
Freedom Diagnostics TestingTier Atested
- Purity
- 98.905%
- Price per mg
- $12.50$125.00 / 10mgbest of 2 sizes
Learn more about what Research Peptides Lab carries
Rated higher than Research Peptides Lab, with a reader code
Research Peptides Lab is not one of our affiliate partners, so we have no code for it. These partners score above it under the same published rules, pass our testing gate, and give readers a discount.
Affiliate links: we may earn a commission if you buy. It never changes a score or rank.
8.17/10 · Strong · carries 14 of the same products
7.71/10 · Strong · carries 16 of the same products
7.09/10 · Strong · carries 15 of the same products
Research Peptides Lab: Frequently Asked Questions
Is Research Peptides Lab legit?
Research Peptides Lab scores 6.14 out of 10 (Fair, tied #57 of 100) as of October 24, 2026 and passes our testing gate: 16 of the 17 products we score carry a certificate, 16 confirmed with the issuing lab (a lab we grade A). Its strongest area is lab testing (7.0/10) and its weakest is transparency (1.0/10); its operating history on record covers over a year.
Is there a Research Peptides Lab promo code, coupon code, or discount code?
We do not have a verified Research Peptides Lab promo code or coupon code right now. When Research Peptides Lab runs a sale or issues a discount code, we post it here and on our promos page, so bookmark this page for the latest Research Peptides Lab discount.
Does Research Peptides Lab use third-party lab testing?
Yes. We have independently verified third-party COA evidence for this vendor. Laboratories on the certificates we hold: Freedom Diagnostics Testing.
Where can I see Research Peptides Lab's COAs?
In the "Research Peptides Lab COAs and lab test results" table on this page. We hold 16 certificates for Research Peptides Lab, covering 16 of the 18 products we track, issued by Freedom Diagnostics Testing. 16 products' certificates were confirmed at the issuing laboratory itself. Each row links the certificate, its lab, its test date and the purity it reports.
What peptides does Research Peptides Lab carry?
Research Peptides Lab carries BPC-157, TB-500, GHK-Cu, CJC-1295, Ipamorelin, Selank, Melanotan-2, Sermorelin, and 10 more. Current per-milligram pricing, COA links, and verification keys for each are in the comparison table on this page.
Is the Research Peptides Lab review on Peptide Source Review affected by affiliate status?
No. All affiliate relationships are publicly disclosed and never change a vendor's score, rank, or gate status. Our scoring formula is published in full and applied identically to every vendor.
Want to understand how this score was built?
Read the full methodology or the editorial integrity policy.
Research Peptides Lab6.14Fair
16 confirmed at the lab