Independent vendor review · 2026

StudzPeptides Review

Scored 6.99/10 on the published Peptide Source Review formula: lab credibility, shipping, pricing, operating history, and transparency.

Reviewed by the Peptide Source Review teamLast audited How we rate

COAs on file
37

COAs on file

Confirmed at the lab
37

Confirmed at the lab

Products
39

Products

Labs
4

Labs

6.99/ 10

Fair

Last scored

No testing cap

Weights are fixed for every vendor. Select a row to see how it was scored.

Is StudzPeptides legit?

StudzPeptides scores 6.99 out of 10 (Fair, #33 of 100) as of November 6, 2026 and passes our testing gate: 37 of the 38 products we score carry a certificate, 37 confirmed with the issuing lab (labs we grade A to B+). Its strongest area is pricing (9.5/10); its weakest is operating history (1.5/10), with about eight months of records. We also record that some of its certificates were issued to another business.

On lab evidence, the heaviest-weighted factor, StudzPeptides has independently verified third-party COAs, with COA work on record from Freedom Diagnostics Testing, Vanguard Laboratory, ILS Laboratories, Kovera Labs. 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 26, 2026. Lab credibility is worked product by product from the certificates on file.

Lab credibility7.7/10

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 2026-08-12

    • 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 2026-07-31

    • 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
    • 0.0Purity 99.55% (99.0% up to but not including 99.7%)
  • AOD-96048.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-14

    • 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 99.58% (99.0% up to but not including 99.7%)
  • ARA-2908.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-25

    • 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 99.71% (99.7% or higher)
  • BPC-1578.5

    Certificate from Vanguard Laboratory, tier B+ · tested 2026-09-08

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • +0.5Purity 99.8% (99.7% or higher)
  • BPC-157 + TB-5008.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-25

    • 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 99.1% (99.0% up to but not including 99.7%)
  • CJC-1295 + Ipamorelin8.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-19

    • 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 99.82% (99.7% or higher)
  • Cartalax8.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-23

    • 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 99.94% (99.7% or higher)
  • DSIP8.0

    Certificate from Vanguard Laboratory, tier B+ · tested 2026-08-20

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • 0.0Purity 99.5% (99.0% up to but not including 99.7%)
  • Dihexa8.5

    Certificate from Kovera Labs, tier A- · tested 2026-05-28

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A- (Kovera Labs)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • +0.5Endotoxin test
    • 0.0Purity 99.209% (99.0% up to but not including 99.7%)
  • Glutathione8.0

    Certificate from Vanguard Laboratory, tier B+ · tested 2026-09-07

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • 0.0No purity figure on the certificate
  • Epitalon8.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-25

    • 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 99.24% (99.0% up to but not including 99.7%)
  • GHK-Cu8.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-19

    • 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 99.03% (99.0% up to but not including 99.7%)
  • GLOW8.0

    Certificate from Vanguard Laboratory, tier B+ · tested 2026-09-01

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • 0.0Purity 99.5% (99.0% up to but not including 99.7%)
  • IGF-1 LR38.0

    Certificate from Vanguard Laboratory, tier B+ · tested 2026-09-07

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • 0.0Purity 99.08% (99.0% up to but not including 99.7%)
  • Ipamorelin8.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-19

    • 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 99.82% (99.7% or higher)
  • KLOW9.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-10-08

    • 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)
  • KPV8.0

    Certificate from Vanguard Laboratory, tier B+ · tested 2026-09-08

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • 0.0Purity 99.21% (99.0% up to but not including 99.7%)
  • Kisspeptin-108.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-25

    • 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 99.65% (99.0% up to but not including 99.7%)
  • MOTS-c6.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-10-02

    • 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 98.64% (97.0% up to but not including 99.0%)
  • Melanotan-18.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-23

    • 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 99.88% (99.7% or higher)
  • Melanotan-28.5

    Certificate from Vanguard Laboratory, tier B+ · tested 2026-09-08

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • +0.5Purity 99.8% (99.7% or higher)
  • NAD+6.5

    Certificate from Vanguard Laboratory, tier B+ · tested 2026-09-01

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • −1.5Purity 98.1% (97.0% up to but not including 99.0%)
  • Oxytocin8.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-14

    • 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 99.1% (99.0% up to but not including 99.7%)
  • PT-1418.5

    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
    • +0.5Purity 99.92% (99.7% or higher)
  • Pinealon9.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-10-21

    • 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 99.67% (99.0% up to but not including 99.7%)
  • SS-319.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-10-21

    • 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)
    • +0.5Purity 99.9% (99.7% or higher)
  • Cagrilintide8.0

    Certificate from Vanguard Laboratory, tier B+ · tested 2026-09-01

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • 0.0Purity 99.69% (99.0% up to but not including 99.7%)
  • Retatrutide9.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-10-21

    • 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)
    • +0.5Purity 99.97% (99.7% or higher)
  • Tirzepatide8.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-19

    • 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 99.75% (99.7% or higher)
  • Tesamorelin6.5

    Certificate from Vanguard Laboratory, tier B+ · tested 2026-09-29

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • −1.5Purity 98.76% (97.0% up to but not including 99.0%)
  • Selank9.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-09-30

    • 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 99.72% (99.7% or higher)
  • Semax9.5

    Certificate from ILS Laboratories, tier B+ · tested 2026-07-16

    • 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 99.79% (99.7% or higher)
  • Sermorelin6.5

    Certificate from Vanguard Laboratory, tier B+ · tested 2026-08-20

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • −1.5Purity 98.7% (97.0% up to but not including 99.0%)
  • TB-5008.0

    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
    • 0.0Purity 99.12% (99.0% up to but not including 99.7%)
  • Thymosin Alpha-18.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-10-02

    • 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 99.85% (99.7% or higher)
  • SLU-PP-3328.0

    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
    • 0.0No purity figure on the certificate
  • SNAP-80.0

    No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.

Weighted mean of 38 products (1 non-core product without a certificate counted at half weight): 305.0 ÷ 37.5 = 8.133.

  • −0.20LOT Lot numbers that do not identify a single batch (cap −0.2): printed lot AR50824ALF on both the AICAR 50 mg (Vanguard V260827-43 006) and SP-T2 (tirzepatide) 20 mg (Vanguard V260827-43 005) certificates
  • −0.20SUPPLIER Certificates ordered by a supplier or another client (cap −0.5): the 5-Amino-1MQ certificate (ILS COA-2026-956698, produced 5 September 2026) re-issues an analysis first reported to PS SUPPLY (COA-2026-PYEP3A, produced 12 August 2026): same received and analysis dates, purity, net content and chromatogram file on the laboratory's server; one of 37 certificates, so 0.2 under rule A7

8.133 − 0.400 = 7.733, rounded to 0.1: 7.7/10.

Testing gate: 37 of 38 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 refunds5.5/10
  • +1

    Returns and refunds

    "Orders where the concern isn't about product quality, condition or order accuracy" are not covered; covered: purity below COA, defects, damaged, wrong and missing items, reported "within 30 days of delivery".

    Only quality, damaged, wrong or missing items are put right; no unopened return for any other reason (rule B1: 1).

    studzpeptides.com (opens in new tab) source 2 (opens in new tab)checked

  • +1

    Lost or damaged parcels

    "Damaged Products: Items damaged in shipping ... full refund to your original payment method (or a replacement)"; lost: "Orders to US addresses that miss the delivery deadline qualify for the Delivery Guarantee credit. Every order includes package coverage up to [amount]; if you purchased shipping insurance at checkout, we'll assist you with the claim."

    A refund or replacement is stated for damage; a lost parcel gets a store credit, capped package coverage or a claim on paid insurance, not a stated free reship or refund (rule B2: 1).

    studzpeptides.com (opens in new tab) source 2 (opens in new tab)checked

  • +1.5

    Dispatch time

    "Orders are typically processed within 1–2 business days."

    studzpeptides.com (opens in new tab) source 2 (opens in new tab)checked

  • +1

    Tracking on all orders

    "Once your order ships, you'll receive a tracking number via email."

    studzpeptides.com (opens in new tab)checked

  • +1

    Payment you can dispute

    Site banner: "Record low 4% CC fee"; terms: "Credit/Debit Cards (Visa, Mastercard, American Express)"

    Cards are taken with a stated 4% card fee, through a hosted card checkout (Clear Finance); cards with a surcharge score 1 (rule B5). The payment-methods page lists Bitcoin, Zelle, Cash App, Wise, ACH and eDebit only. The checkout was not reached (nothing added to a cart).

    studzpeptides.com (opens in new tab) source 2 (opens in new tab) source 3 (opens in new tab)checked

  • 0

    Shipping rates published

    "Rates are calculated at checkout based on your location and the service you choose. Qualifying orders may receive free shipping; the details appear at checkout."

    No shipping rate or free-shipping threshold is published on the site's pages (rule B6: 0). The store's checkout settings hold a threshold, but it is shown only at checkout, which was not reached.

    studzpeptides.com (opens in new tab)checked

Total +5.5: 5.5/10.

Pricing9.5/10

We compared StudzPeptides’s current single-vial prices on 36 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 51% below the market median (ratio 0.49), which the published scale maps to 9.5/10. checked

Operating history1.5/10

Counted from March 5, 2026, the earliest dated evidence of this business operating: 7.7 months as of October 26, 2026, which the published table maps to 1.5/10.

Domain studzpeptides.com registered 2025-10-04 (Verisign RDAP; registrar Squarespace Domains, Vercel DNS). No archived capture exists before 2026-03-05, so nothing shows what the domain carried from October 2025 to March 2026, and no other record of the store operating in that period was found; the registration date alone is not counted. The earliest archived copy of the store is 2026-03-05: the StudzPeptides site with a sign-up page, a certificates link and accepted payment methods (the root redirected to sign-up). Later records: a Kovera certificate issued to the store, sample received 2026-04-25; the earliest dated Trustpilot review, published 2026-05-20; the first archived homepage with the current store, 2026-07-22. The site names no operating company; ILS certificates name STUDZPEPTIDES LLC, and no registry entry for it was found. The privacy policy's 'Last Updated: December 2, 2025' is the site's own statement and is not one of the records rule D counts. The 2026-03-05 capture is used.

Transparency3.0/10

Total +3: 3.0/10.

  • Pricing: most products are sold as a single vial and also as 5-vial half-kits and 10-vial kits. Rule E1 counts at most 2 vials for one total, so packs are not counted and each size is priced at its single-vial price. Every half-kit size is also sold as a single vial, so rule E2 (pack-only sizes) does not apply. Build-a-kit discounts (4% at 6 vials, 7% at 10 vials), cashback, referral rewards and codes are not counted.
  • Pricing: capsules, nasal spray vials, raw-powder vials and topical serums are not vials of the catalogue product and are not priced. SLU-PP-332 (capsules only) and SNAP-8 (topical serum only) are listed as carried with no comparable price. Glutathione is sold only as a 400 mg/mL solution and is priced at the stated total mg per vial (4,000 mg in 10 mL).
  • Pricing: AOD-9604 10 mg and DSIP 15 mg were shown at sale prices with no end date and no event; at a first review the price a buyer pays that day is used.
  • Transparency: retatrutide, tirzepatide, cagrilintide, tesamorelin and SS-31 are listed as SP-R3, SP-T2, SP-CAG, SP-TESA and SP-31; rule C9 is applied once, for the GLP products whose pages do not name the compound.
  • Shipping: the site's payment-methods page lists no card method and says no payment processing fees are charged, while the site banner states a 4% card fee and the terms list cards. Recorded here; not scored as a contradiction between policies (B7), because the banner is not a policy page.
Third-party tested: VerifiedLabs: Freedom Diagnostics Testing, Vanguard Laboratory, ILS Laboratories, Kovera LabsProducts tracked: 39

Shop StudzPeptides

  • Rated 6.99/10 · Fair
  • 37 COAs confirmed at the issuing lab
  • Best value: Glutathione at $0.01/mg
Visit StudzPeptides → (opens in new tab)

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

  1. Most recent audit · 7.10to6.99

    Lab evidence recomputed under the published rule on 6 November 2026: a SUPPLIER adjustment of 0.2 was added under rule A7 because the 5-Amino-1MQ certificate re-issues an analysis first reported to PS SUPPLY, with the same dates, results and chromatogram on the laboratory's server; the match is disclosed on both reviews. Lab evidence 7.9 to 7.7.

  2. Audit · Initial audit

    lab 7.9 / shipping 5.5 / pricing 9.5 / tenure 1.5 / transparency 3.0. First audit after the vendor's submission. 37 of 38 catalogue products have a certificate, and every scored certificate was found at the issuing laboratory (Freedom Diagnostics Testing, Vanguard Laboratory, ILS Laboratories, Kovera Labs). One lot label is printed on certificates for two different compounds (rule A7 LOT, -0.2).

Editor’s notes

StudzPeptides sells research peptides from studzpeptides.com and ships from the United States, with some international destinations. Its catalogue and certificates are public. Most products are sold as single vials and also as 5-vial half-kits and 10-vial kits; every half-kit size is also sold as a single vial, so our price comparison uses the single-vial price (packs of more than 2 vials are not counted, rule E1). On that basis its prices on 26 October 2026 sat about 52% below the market median across 36 products. Capsules, nasal sprays, raw powders and topical serums are also sold and are not priced; cashback, referral rewards and codes are not counted. The store published 86 certificates of analysis, from Freedom Diagnostics Testing, Vanguard Laboratory, ILS Laboratories and Kovera Labs. All 38 catalogue products we list except one, a topical SNAP-8 serum, have a certificate, and every scored certificate was found at the issuing laboratory; each posted copy matched the laboratory's copy, except that the 10 mg tesamorelin report posted is an earlier edition of the laboratory's report, with the same results and fewer tests. Purity ranges from 98.10% (NAD+) to 99.97% (retatrutide); a few certificates add endotoxin, sterility or heavy-metal screens. One lot label, AR50824ALF, is printed on two certificates for different compounds (AICAR and the 20 mg tirzepatide). Retatrutide, tirzepatide, cagrilintide, tesamorelin and SS-31 are sold under code names (SP-R3, SP-T2, SP-CAG, SP-TESA, SP-31), and the retatrutide and tirzepatide pages do not name the compound. Orders are typically processed within 1 to 2 business days, tracking is emailed, and US orders carry a delivery guarantee of 5 business days or a store credit. Quality, damage, wrong-item and missing-item claims are refunded or replaced within 30 days of delivery; a lost parcel is covered by that credit, a capped package coverage or paid shipping insurance. Cards are accepted with a stated 4% card fee, alongside Bitcoin, Zelle, Cash App, Wise and bank transfer. The site names no company or person and gives a PO box at the Queen Creek, Arizona post office, with no phone; its terms are dated and governed by Arizona law. The domain was registered in October 2025; the store is first archived on 5 March 2026, and its operating history is counted from then. ILS Laboratories' records show the same analysis of 5-Amino-1MQ 50 mg on two reports, with the same received and analysis dates, results and chromatogram and different client names and lot labels: COA-2026-PYEP3A (PS SUPPLY, lot PS07-5AM50, produced 12 August 2026), which Vortex Research posts, and COA-2026-956698 (Studz Peptides, lot 5AMQ904PTR, produced 5 September 2026), which StudzPeptides posts. The two are not independent tests.

StudzPeptides 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).

5-Amino-1MQVerified (opens in new tab)

ILS LaboratoriesTier B+tested

Purity
99.97%
Price per mg
$0.80$39.99 / 50mg
AHK-CuVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.55%
Price per mg
$0.28$27.99 / 100mg
AOD-9604Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.58%
Price per mg
$2.70$26.99 / 10mg
ARA-290Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.71%
Price per mg
$3.00$29.99 / 10mg
BPC-157Verified (opens in new tab)

Vanguard LaboratoryTier B+tested

Purity
99.8%
Price per mg
$2.50$49.99 / 20mgbest of 2 sizes
BPC-157 + TB-500Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.1%
Price per mg
$2.60$51.99 / 20mgbest of 2 sizes
CJC-1295 + IpamorelinVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.82%
Price per mg
$3.30$32.99 / 10mg
CartalaxVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.94%
Price per mg
$2.25$44.99 / 20mg
DSIPVerified (opens in new tab)

Vanguard LaboratoryTier B+tested

Purity
99.5%
Price per mg
$2.17$32.50 / 15mgbest of 2 sizes
DihexaVerified (opens in new tab)

Kovera LabsTier A-tested

Purity
99.209%
Price per mg
$2.60$25.99 / 10mg
GlutathioneVerified (opens in new tab)

Vanguard LaboratoryTier B+tested

Purity
—
Price per mg
$0.01$129.99 / 20000mgbest of 2 sizes
EpitalonVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.24%
Price per mg
$1.00$49.99 / 50mgbest of 2 sizes
GHK-CuVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.03%
Price per mg
$0.27$26.99 / 100mgbest of 2 sizes
GLOWVerified (opens in new tab)

Vanguard LaboratoryTier B+tested

Purity
99.5%
Price per mg
$0.71$49.99 / 70mg
IGF-1 LR3Verified (opens in new tab)

Vanguard LaboratoryTier B+tested

Purity
99.08%
Price per mg
$54.99$54.99 / 1mg
IpamorelinVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.82%
Price per mg
$2.50$25.00 / 10mg
KLOWVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.96%
Price per mg
$0.80$63.99 / 80mg
KPVVerified (opens in new tab)

Vanguard LaboratoryTier B+tested

Purity
99.21%
Price per mg
$2.70$27.00 / 10mg
Kisspeptin-10Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.65%
Price per mg
$2.50$24.99 / 10mg
MOTS-cVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
98.64%
Price per mg
$1.50$59.99 / 40mgbest of 3 sizes
Melanotan-1Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.88%
Price per mg
$2.30$23.00 / 10mg
Melanotan-2Verified (opens in new tab)

Vanguard LaboratoryTier B+tested

Purity
99.8%
Price per mg
$2.30$22.99 / 10mg
NAD+Verified (opens in new tab)

Vanguard LaboratoryTier B+tested

Purity
98.1%
Price per mg
$0.05$49.99 / 1000mgbest of 2 sizes
OxytocinVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.1%
Price per mg
$3.80$37.99 / 10mg
PT-141Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.92%
Price per mg
$2.50$24.99 / 10mg
PinealonVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.67%
Price per mg
$3.00$29.99 / 10mg
SS-31Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.9%
Price per mg
$1.52$75.99 / 50mgbest of 2 sizes
CagrilintideVerified (opens in new tab)

Vanguard LaboratoryTier B+tested

Purity
99.69%
Price per mg
$4.00$39.99 / 10mg
RetatrutideVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.97%
Price per mg
$1.83$109.99 / 60mgbest of 5 sizes
TirzepatideVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.75%
Price per mg
$1.00$99.99 / 100mgbest of 5 sizes
TesamorelinVerified (opens in new tab)

Vanguard LaboratoryTier B+tested

Purity
98.76%
Price per mg
$3.85$76.99 / 20mgbest of 2 sizes
SelankVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.72%
Price per mg
$2.70$26.99 / 10mg
SemaxVerified (opens in new tab)

ILS LaboratoriesTier B+tested

Purity
99.79%
Price per mg
$2.48$24.79 / 10mg
SermorelinVerified (opens in new tab)

Vanguard LaboratoryTier B+tested

Purity
98.7%
Price per mg
$3.00$30.00 / 10mg
TB-500Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.12%
Price per mg
$3.40$33.99 / 10mg
Thymosin Alpha-1Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.85%
Price per mg
$4.30$42.99 / 10mg
SLU-PP-332Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
—
Price per mg
—
SNAP-8No public COANo third-party COA was publicly available at audit time
Purity
—
Price per mg
—
Bacteriostatic WaterNo public COANo third-party COA was publicly available at audit time
Purity
—
Price per mL
$0.60$17.99 / 30 mL

Learn more about what StudzPeptides carries

Learn about BPC-157 →Learn about GHK-Cu →Learn about Ipamorelin →Learn about Retatrutide →

Rated higher than StudzPeptides, with a reader code

StudzPeptides 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.

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StudzPeptides: Frequently Asked Questions

Is StudzPeptides legit?

StudzPeptides scores 6.99 out of 10 (Fair, #33 of 100) as of November 6, 2026 and passes our testing gate: 37 of the 38 products we score carry a certificate, 37 confirmed with the issuing lab (labs we grade A to B+). Its strongest area is pricing (9.5/10); its weakest is operating history (1.5/10), with about eight months of records. We also record that some of its certificates were issued to another business.

Is there a StudzPeptides promo code, coupon code, or discount code?

We do not have a verified StudzPeptides promo code or coupon code right now. When StudzPeptides runs a sale or issues a discount code, we post it here and on our promos page, so bookmark this page for the latest StudzPeptides discount.

Does StudzPeptides 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, Vanguard Laboratory, ILS Laboratories, Kovera Labs.

Where can I see StudzPeptides' COAs?

In the "StudzPeptides COAs and lab test results" table on this page. We hold 37 certificates for StudzPeptides, covering 37 of the 39 products we track, issued by 4 laboratories (Freedom Diagnostics Testing, Vanguard Laboratory, ILS Laboratories, Kovera Labs). 37 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 StudzPeptides carry?

StudzPeptides carries 5-Amino-1MQ, AHK-Cu, AOD-9604, ARA-290, BPC-157, BPC-157 + TB-500, CJC-1295 + Ipamorelin, Cartalax, and 31 more. Current per-milligram pricing, COA links, and verification keys for each are in the comparison table on this page.

Is the StudzPeptides 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.

Visit StudzPeptides → (opens in new tab)

StudzPeptides6.99Fair

37 confirmed at the lab

Visit StudzPeptides (opens in new tab)

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