S1Research Review
Scored 7.70/10 on the published Peptide Source Review formula: lab credibility, shipping, pricing, operating history, and transparency.
- COAs on file
- 30
COAs on file
- Confirmed at the lab
- 29
Confirmed at the lab
- Products
- 31
Products
- Labs
- 2
Labs
7.70/ 10
Last scored
No testing cap
- Lab credibility and recency55%8.6 (show how this was scored)
- Shipping and refund20%6.0 (show how this was scored)
- Pricing15%9.5 (show how this was scored)
- Operating history5%1.8 (show how this was scored)
- Business transparency5%5.0 (show how this was scored)
Weights are fixed for every vendor. Select a row to see how it was scored.
Is S1Research legit?
S1Research scores 7.70 out of 10 (Strong, #16 of 100) as of October 27, 2026 and passes our testing gate: 29 of the 30 products we score carry a certificate, 29 confirmed with the issuing lab (labs we grade A to B+). Its strongest area is pricing (9.5/10); its weakest is operating history (1.8/10), with about eleven months of records.
On lab evidence, the heaviest-weighted factor, S1Research has independently verified third-party COAs, with COA work on record from Freedom Diagnostics Testing, ILS Laboratories. Its lowest price per milligram in our data is on Glutathione (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 27, 2026. Lab credibility is worked product by product from the certificates on file.
Lab credibility8.6/10
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.
- 5-Amino-1MQ9.5
Certificate from ILS Laboratories, tier B+ · tested 2026-06-24
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (ILS Laboratories)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.97% (99.7% or higher)
- AHK-Cu8.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-01-13
- 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 99.469% (99.0% up to but not including 99.7%)
- AOD-96040.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- BPC-1579.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-08-15
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.39% (99.0% up to but not including 99.7%)
- Cagrilintide9.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-08-15
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.6% (99.0% up to but not including 99.7%)
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-07-24
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.77% (99.7% or higher)
- DSIP9.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-07-24
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.05% (99.0% up to but not including 99.7%)
- Epitalon9.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-10
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.96% (99.7% or higher)
- GHK-Cu9.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-08-16
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.92% (99.7% or higher)
- GLOW9.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-08-21
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.48% (99.0% up to but not including 99.7%)
- Glutathione9.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-08-04
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.78% (99.7% or higher)
- IGF-1 LR35.5
Certificate from ILS Laboratories, tier B+ · tested 2026-05-20
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (ILS Laboratories)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- −3.0Purity 95.65% (below 97.0%)
- Ipamorelin9.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-07-31
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.89% (99.7% or higher)
- KLOW9.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-18
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.89% (99.7% or higher)
- KPV9.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-08-05
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.89% (99.7% or higher)
- MOTS-c9.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-03
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.48% (99.0% up to but not including 99.7%)
- NAD+9.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-08-24
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.97% (99.7% or higher)
- PT-1419.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-08-24
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.94% (99.7% or higher)
- Retatrutide9.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-18
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.78% (99.7% or higher)
- Selank9.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-04-01
- 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
- +0.5Endotoxin test
- +0.5Purity 99.71% (99.7% or higher)
- Semaglutide9.0
Certificate from ILS Laboratories, tier B+ · tested 2026-07-31
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (ILS Laboratories)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.5% (99.0% up to but not including 99.7%)
- Semax9.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-08-04
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.61% (99.0% up to but not including 99.7%)
- Sermorelin9.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-08-04
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.27% (99.0% up to but not including 99.7%)
- SNAP-88.0
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-10
- 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 99.366% (99.0% up to but not including 99.7%)
- SS-319.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-06-17
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.89% (99.7% or higher)
- TB-5008.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-17
- 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 99.703% (99.7% or higher)
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-08-26
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- 0.0Purity 99.56% (99.0% up to but not including 99.7%)
- Tesamorelin9.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-03
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.88% (99.7% or higher)
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-07-31
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.95% (99.7% or higher)
- Tirzepatide9.5
Certificate from Freedom Diagnostics Testing, tier A · tested 2026-08-26
- 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
- +0.5Endotoxin test
- +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
- +0.5Purity 99.87% (99.7% or higher)
Weighted mean of 30 products (1 non-core product without a certificate counted at half weight): 262.5 ÷ 29.5 = 8.898.
- −0.20CLAIM Claims the certificates do not support (cap −0.3): the IGF-1 LR3 product page states 'Purity: >99% (HPLC-verified)'; the ILS certificate for the product (COA-2026-UQPGOS, lot IGF041726S1) reports 95.65%; the glutathione product page states '99.9+% Purity'; the Freedom Diagnostics certificate for the product (Step2607301050, lot GL072926S1) reports 99.78%
8.898 − 0.200 = 8.698, rounded to 0.1: 8.7/10.
Testing gate: 29 of 30 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.
The published lab sub-score is 8.6/10, which differs from this rule result by 0.1. It changes at the next audit.
Shipping and refunds6.0/10
- 0
Returns and refunds
"Due to the sensitive nature of research products, all aminos sales are final. We cannot accept returns or issue refunds once an order has been shipped."; "If your order arrives damaged, incorrect, or missing items, please contact us within 48 hours of delivery so we can resolve the issue."
All sales are final. A damaged, incorrect or short order is to be reported within 48 hours 'so we can resolve the issue', but no reship, replacement or refund is stated for it (rule B1: 0).
s1research.net (opens in new tab) source 2 (opens in new tab)checked
- +1
Lost or damaged parcels
"Please file a claim directly with the shipping carrier ... We will work closely with you to ensure your package reaches you, either by resolving the issue with the carrier or sending a replacement. Please note that while we offer optional package protection for these exact scenarios, you are always free to opt out during checkout."
Lost parcels go through a carrier claim first, with a replacement possible and an optional paid package protection; broken items: 'Please contact us' (rule B2: 1).
s1research.net (opens in new tab) source 2 (opens in new tab)checked
- +1.5
Dispatch time
"We ship Monday through Friday. Please have your order in by 2pm to ensure your package goes out same day."; banner: "Same Day order processing cut off time is 2PM EST Monday-Friday."
s1research.net (opens in new tab) source 2 (opens in new tab)checked
- +1
Tracking on all orders
"Tracking information will be made available for all shipments."
- +1.5
Payment you can dispute
FAQ: "We accept various payment methods including Zelle, AHC, debit, and credit card."; terms: "Your Credit Card Statement Will Appear As S1RESEARCH"
The store's payment selector, in the public page code, offers Visa, American Express and Discover through a card gateway, plus Zelle, Cash App and crypto, with 5% off the non-card methods (a discount, not a card surcharge). Read from the page code and the policy pages; the checkout was not reached (nothing added to a cart).
s1research.net (opens in new tab) source 2 (opens in new tab) source 3 (opens in new tab)checked
- +1
Shipping rates published
Cart and site banner: "Add [price] more to unlock FREE shipping"
s1research.net (opens in new tab) source 2 (opens in new tab)checked
Total +6: 6.0/10.
Pricing9.5/10
We compared S1Research’s current single-vial prices on 28 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 56% below the market median (ratio 0.44), which the published scale maps to 9.5/10. checked
Operating history1.8/10
Counted from December 8, 2025, the earliest dated evidence of this business operating: 10.6 months as of October 27, 2026, which the published table maps to 1.8/10.
Domain s1research.net registered 2025-05-12 (Verisign RDAP; registrar Hostinger). The only archived entry before 2026 (2025-07-20) is a redirect with no page content, and no other record shows what the domain carried in 2025 before December, so the registration date alone is not counted. The earliest record of the business operating is a Freedom Diagnostics certificate issued to 'S1 Research' (Snap-8, search code S1Re2512080098) with the sample received 2025-12-08; a second (thymosin beta-4, S1Re2512160042) followed on 2025-12-16. Later records: certificates issued to Step One Ventures from January 2026; the first archived copy of the store with content, 2026-04-17. The site names Step One Ventures LLC with a Tampa, Florida address; its Florida registry entry could not be read (the state's search refuses automated requests), so no formation date is counted. The 2025-12-08 certificate date is used.
- 2025-05-12 Domain registration: registration 2025-05-12T20:55:16Z; not counted: no capture or other record of operation before December 2025 rdap.verisign.com (opens in new tab)
- 2025-07-20 archive: Wayback index entry 2025-07-20 with HTTP 301 and no stored page content; not counted web.archive.org (opens in new tab)
- 2025-12-08 certificate: Freedom Diagnostics accession 2512080098, client S1 Research, Snap 8 100mg, lot XS110125S1, received 12/08/2025 coas.freedomdiagnosticstesting.com (opens in new tab)
- 2026-04-17 archive: earliest archived copy of the store with content web.archive.org (opens in new tab)
Transparency5.0/10
- +2
Legal entity named
"Step One Ventures LLC is a chemical supplier."; "© 2025 by Step One Ventures."; terms: "products sold by Step One Ventures"
s1research.net (opens in new tab) source 2 (opens in new tab) source 3 (opens in new tab)checked
- +1
Business address
"Address: 12094 Anderson Rd #207 Tampa FL 33625"
Address checked: 12094 Anderson Rd, Tampa is The UPS Store, which rents mailboxes; #207 is a box number (rule C3: 1). Evidence: evidence-local/2026-10-27/s1research/TRANSPARENCY.
s1research.net (opens in new tab) source 2 (opens in new tab) source 3 (opens in new tab)checked
- +1
- 0
Named owner or staff
No person is named with a role on the site
The about, contact, FAQ and terms pages name the company but no person (rule C5).
- 0
Dated terms with a governing law
"You agree that this Terms and Conditions of Use Agreement and this Web Site will be governed by and construed in accordance with Nevis law"
A governing law is named (Nevis), but neither the terms nor the privacy policy carries a date (rule C6: 0).
s1research.net (opens in new tab) source 2 (opens in new tab)checked
- +1.5
Testing lab named, certificates published
Product pages post certificates from Freedom Diagnostics Testing and ILS Laboratories; COA page: "To view the current batch results for any product, simply visit its dedicated product page."
s1research.net (opens in new tab) source 2 (opens in new tab)checked
- −0.5
GLP products sold only under code names
"R-GLP3" ("R-GL -Peptide3"), "S-GLP1 CAS # 910463-68-2" ("S-GL-Peptide1") and "T-GLP2 CAS # 2023788-19-2" ("T-GL-Peptide2")
Retatrutide, semaglutide and tirzepatide are listed under code names; the product pages describe the receptor targets and give a CAS number for two of them, but do not name the compound. The certificates identify them. Evidence: evidence-local/2026-10-27/s1research/GLPCODE.
s1research.net (opens in new tab) source 2 (opens in new tab) source 3 (opens in new tab)checked
Total +5: 5.0/10.
- Pricing: every product shows a struck-through 'regular' price with no end date and no event; at a first review the price a buyer pays that day is used (rule E). Multi-vial research packs of 3, 5 and 10 vials are more than 2 vials and are not counted (E1). Code SAVE10, the 5% discount for paying by Zelle, Cash App or crypto, and bulk or wholesale pricing are not counted.
- Pricing: AOD-9604 5 mg, IGF-1 LR3 1 mg and sermorelin 5 mg were out of stock at the audit and are not priced; GHK-Cu Raw 1g is not priced because an 80 mg vial is sold; AHK-Cu is sold only as a 1 g raw powder and is priced at 1000 mg.
- Lab: ILS certificates for 5-Amino-1MQ and semaglutide are posted as page 1 of 2; the laboratory's own copy adds PCR sterility, endotoxin and heavy metals on page 2, which are credited because they belong to the same verified report.
- Not in our catalogue and not scored: B12 (liquid), Lipo-C, SY-NAKE 200 mg and a tesamorelin/ipamorelin blend. Bacteriostatic water and B12 certificates name BT Labs; neither is a catalogue product.
Shop S1Research
- Rated 7.70/10 · Strong
- 29 COAs confirmed at the issuing lab
- Best value: Glutathione at $0.02/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 · Initial audit
lab 8.6 / shipping 6.0 / pricing 9.5 / tenure 1.8 / transparency 5.0. First audit after the vendor's contact. 29 of 30 catalogue products have a certificate, and every scored certificate was found at the issuing laboratory (Freedom Diagnostics Testing, ILS Laboratories). Two product pages state a higher purity than their certificates (rule A7 CLAIM, -0.2).
Editor’s notes
S1Research sells research peptides from s1research.net, operated by Step One Ventures LLC, and ships within the United States. Product pages post certificates of analysis as images; the certificates come from Freedom Diagnostics Testing and ILS Laboratories. Of the 31 catalogue products we list, 30 have a certificate; AOD-9604, out of stock at our audit, has none. We scored the newest certificate for each product, and every one of them was found at the issuing laboratory with the same details as the store's copy. Most current Freedom reports add endotoxin, a PCR microbial screen, heavy metals and a fentanyl screen. Purity on the scored certificates runs from 99.05% to 99.97%, except IGF-1 LR3 at 95.65%, whose product page states more than 99%; the glutathione page likewise states 99.9% or more against a certified 99.78%. Retatrutide, semaglutide and tirzepatide are sold as 'R-GLP3', 'S-GLP1' and 'T-GLP2', and their pages do not name the compound. Prices are among the lowest we list. Orders placed before 2 PM Eastern on weekdays ship the same day with tracking, and shipping is free above an order minimum. All sales are final; damaged or wrong items are to be reported within 48 hours but no remedy is stated, and lost parcels go through a carrier claim, with a replacement possible. Cards are accepted at checkout, alongside Zelle, Cash App and crypto. The site names Step One Ventures LLC, a mailbox address at a UPS Store in Tampa, Florida, and a phone number, but no person; its terms are undated and governed by the law of Nevis. The domain was registered in May 2025; the earliest record of the business operating is a laboratory certificate issued to it with a sample received on 8 December 2025, and its operating history is counted from then.
S1Research 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).
ILS LaboratoriesTier B+tested
- Purity
- 99.97%
- Price per mg
- $0.94$47.00 / 50mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.469%
- Price per mg
- $0.04$44.00 / 1000mg
- Purity
- —
- Price per mg
- —
Freedom Diagnostics TestingTier Atested
- Purity
- 99.39%
- Price per mg
- $2.00$60.00 / 30mgbest of 2 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.6%
- Price per mg
- $4.40$22.00 / 5mgbest of 2 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.77%
- Price per mg
- $2.70$27.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.05%
- Price per mg
- $2.20$22.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.96%
- Price per mg
- $2.50$25.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.92%
- Price per mg
- $0.31$25.00 / 80mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.48%
- Price per mg
- $0.60$42.00 / 70mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.78%
- Price per mg
- $0.02$36.00 / 1500mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.89%
- Price per mg
- $2.60$26.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.89%
- Price per mg
- $0.62$49.50 / 80mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.89%
- Price per mg
- $3.00$30.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.48%
- Price per mg
- $1.30$52.00 / 40mgbest of 2 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.97%
- Price per mg
- $0.06$56.00 / 1000mgbest of 2 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.94%
- Price per mg
- $2.00$20.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.78%
- Price per mg
- $1.50$150.00 / 100mgbest of 5 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.71%
- Price per mg
- $3.50$35.00 / 10mg
ILS LaboratoriesTier B+tested
- Purity
- 99.5%
- Price per mg
- $1.50$45.00 / 30mgbest of 3 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.61%
- Price per mg
- $3.50$35.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.27%
- Price per mg
- $3.70$37.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.366%
- Price per mg
- $0.49$49.00 / 100mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.89%
- Price per mg
- $1.66$83.00 / 50mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.703%
- Price per mg
- $3.60$36.00 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.56%
- Price per mg
- $2.50$50.00 / 20mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.88%
- Price per mg
- $2.35$47.00 / 20mgbest of 2 sizes
Freedom Diagnostics TestingTier Atested
- Purity
- 99.95%
- Price per mg
- $3.85$38.50 / 10mg
Freedom Diagnostics TestingTier Atested
- Purity
- 99.87%
- Price per mg
- $1.00$140.00 / 140mgbest of 4 sizes
- Purity
- —
- Price per mL
- —
Learn more about what S1Research carries
Rated higher than S1Research, with a reader code
S1Research 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 18 of the same products
7.80/10 · Strong · carries 17 of the same products
7.73/10 · Strong · carries 22 of the same products
S1Research: Frequently Asked Questions
Is S1Research legit?
S1Research scores 7.70 out of 10 (Strong, #16 of 100) as of October 27, 2026 and passes our testing gate: 29 of the 30 products we score carry a certificate, 29 confirmed with the issuing lab (labs we grade A to B+). Its strongest area is pricing (9.5/10); its weakest is operating history (1.8/10), with about eleven months of records.
Is there a S1Research promo code, coupon code, or discount code?
We do not have a verified S1Research promo code or coupon code right now. When S1Research runs a sale or issues a discount code, we post it here and on our promos page, so bookmark this page for the latest S1Research discount.
Does S1Research 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, ILS Laboratories.
Where can I see S1Research's COAs?
In the "S1Research COAs and lab test results" table on this page. We hold 30 certificates for S1Research, covering 30 of the 31 products we track, issued by 2 laboratories (Freedom Diagnostics Testing, ILS Laboratories). 29 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 S1Research carry?
S1Research carries 5-Amino-1MQ, AHK-Cu, AOD-9604, BPC-157, Cagrilintide, CJC-1295 + Ipamorelin, DSIP, Epitalon, and 23 more. Current per-milligram pricing, COA links, and verification keys for each are in the comparison table on this page.
Is the S1Research 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.
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S1Research7.70Strong
29 confirmed at the lab