Independent vendor review · 2026

Peptide.Express Review

Scored 3.76/10 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
1

COAs on file

Confirmed at the lab
1

Confirmed at the lab

Products
21

Products

Labs
3

Labs

3.76/ 10

Poor

Last scored

Testing gate applies (limit 6.50)

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

Testing gate applies (limit 6.50); this score is already below it

Third-party testing not established. The gate records that testing could not be verified; it is not a finding of a quality or safety problem.

Is Peptide.Express legit?

Peptide.Express scores 3.76 out of 10 (Poor, #82 of 100) as of November 6, 2026 and does not meet our testing gate: 18 of the 21 products we score carry a certificate, 1 confirmed with the issuing lab (a lab we grade A); 17 of those certificates are vendor-issued or from a source whose independence we could not establish. Its strongest area is pricing (7.7/10); its weakest is operating history (1.7/10), with about nine months of records.

On lab evidence, the heaviest-weighted factor, Peptide.Express has no third-party testing we could independently verify, with COA work on record from Freedom Diagnostics Testing. Certificates naming Mistral Diagnostics and Amino Metrics, a laboratory whose independence we could not establish, score a flat 2.0 each. The testing gate applies because that testing could not be independently verified (Third-party testing not established); its limit for Peptide.Express is 6.50, and this score is already below it. Its lowest price per milligram in our data is on NAD+ (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 November 6, 2026. Lab credibility is worked product by product from the certificates on file.

Lab credibility1.9/10

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.

Weighted mean of 21 products (2 non-core products without a certificate counted at half weight): 42.5 ÷ 20.0 = 2.125.

  • −0.20LOT Lot numbers that do not identify a single batch (cap −0.2): lot PX-L916 on retatrutide and MOTS-c

2.125 − 0.200 = 1.925, rounded to 0.1: 1.9/10.

Testing gate: 1 of 21 products have a certificate from a directory laboratory (not tier D, not self-issued) with the key confirmed at the laboratory. That is fewer than half, so the testing cap applies (see the methodology).

Shipping and refunds6.5/10
  • +1

    Returns and refunds

    "all sales are final" ... damaged or incorrect: "we will issue a replacement shipment or store credit at our discretion"

    peptide.express (opens in new tab)checked

  • +1

    Lost or damaged parcels

    delivered-not-received: "contact us within 48 hours with your order number"; they will file a "carrier claim on your behalf"

    peptide.express (opens in new tab)checked

  • +1.5

    Dispatch time

    "Same-day dispatch on business days (orders before 2 PM EST)"

    peptide.express (opens in new tab)checked

  • +1

    Tracking on all orders

    "A shipping confirmation with tracking number will be sent once your order has been dispatched."

    peptide.express (opens in new tab)checked

  • +1.5

    Payment you can dispute

    FAQ: "We accept card, cryptocurrency and Venmo." Terms: "card, cryptocurrency or Venmo"

    Scored from the policy pages; the checkout was not reached. The card outage noted 2026-10-22 is no longer stated.

    peptide.express (opens in new tab)checked

  • +1

    Shipping rates published

    "USPS Priority Mail is a [price] flat rate"; free over [price]

    peptide.express (opens in new tab)checked

  • −0.5

    Policies that contradict each other

    FAQ: "Refunds are issued for verified damaged or incorrect shipments. All other sales are final. Approved refunds return to the original payment method within 5-10 business days." vs shipping: "we will issue a replacement shipment or store credit at our discretion" and "Refunds to original payment method are only issued at Peptide.Express's sole discretion in exceptional circumstances."

    Terms add: "We do not accept returns or issue refunds once a product has shipped." Both sentences read twice on 2026-11-06 (rule B7).

    peptide.express (opens in new tab) source 2 (opens in new tab) source 3 (opens in new tab)checked

Total +6.5: 6.5/10.

Pricing7.7/10

We compared Peptide.Express’s current single-vial prices on 20 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 9% below the market median (ratio 0.91), which the published scale maps to 7.7/10. checked

Operating history1.7/10

Counted from January 25, 2026, the earliest dated evidence of this business operating: 9.3 months as of November 6, 2026, which the published table maps to 1.7/10.

Domain peptide.express registered 2026-01-25 (RDAP/registry WHOIS), never shown parked or for sale under this registration. peptide.express 2024-01-22 capture (301) belongs to an earlier registration; current registration 2026-01-25, first store capture 2026-03-08. Nothing earlier found; domain date kept.

Transparency3.5/10
  • 0

    Legal entity named

    none named

    peptide.express (opens in new tab)checked

  • +1

    Business address

    8865 Stanford Blvd, Ste 101, Columbia, MD 21045 (labelled 'Mailing address')

    Address could not be classified on 2026-11-05; scored 1.

    peptide.express (opens in new tab)checked

  • 0

    Phone number

    none; email only

    checked

  • 0

    Named owner or staff

    none

    checked

  • +1

    Dated terms with a governing law

    "Last Updated: February 2026"; "governed by ... the laws of the United States"

    peptide.express (opens in new tab)checked

  • +1.5

    Testing lab named, certificates published

    lab-results index and product pages name the laboratory on each certificate (Freedom Diagnostics, Mistral Diagnostics, Amino Metrics)

    peptide.express (opens in new tab)checked

Total +3.5: 3.5/10.

  • Lab re-check 2 November 2026: HCG 5000iu, sold out on that date, was added to our listings under the coverage rule; an out-of-stock size is not priced, so the pricing basis below is unchanged.
  • Re-audit 5 November 2026: all listed prices re-read and unchanged, so the pricing basis is unchanged; the payment item now quotes the current FAQ and terms; operating history counted to this date.
Third-party tested: NoLabs: Mistral Diagnostics, Amino Metrics, Freedom Diagnostics TestingProducts tracked: 21

Shop Peptide.Express

  • Rated 3.76/10 · Poor
  • 1 COA confirmed at the issuing lab
  • Best value: NAD+ at $0.12/mg
Visit Peptide.Express → (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 · 3.75to3.76

    Scores re-checked on 6 November 2026 after the correction review pricing 7.6 to 7.7.

  2. Audit · 3.90to3.75

    Corrections on 6 November 2026. The published rule gives lab 1.9, not 2.0. The FAQ says refunds are issued for verified damaged or incorrect shipments, while the shipping page offers a replacement or store credit and refunds only in exceptional circumstances, so the contradiction deduction applies. Shipping 7.0 to 6.5.

  3. Audit · 4.06to3.90

    Full re-audit on 5 November 2026 after the company asked for an independent review. It has posted new Amino Metrics certificates for MOTS-c and tirzepatide, both confirmed at that laboratory, whose independence we could not establish. Our rules score the newest certificate for each product, so MOTS-c moved from a Freedom Diagnostics certificate to the flat score, and 1 of 21 products now has a certificate from a laboratory we could establish. Lab 2.3 to 2.0; operating history 1.6 to 1.7. Shipping, pricing and transparency are unchanged.

Earlier audits (14)
  1. Audit · 4.05to4.06

    Market medians updated after Delix Labs and Ageless Peptides were added pricing 7.5 to 7.6.

  2. Audit · 4.08to4.05

    Pricing recomputed on 27 October 2026: listings added for a newly reviewed vendor (Peptide Pro) moved the market median for the same products pricing 7.7 to 7.5.

  3. Audit · 4.09to4.08

    Pricing recomputed on 26 October 2026: listings added for a newly reviewed vendor (StudzPeptides) moved the market median for the same products: pricing 7.8 to 7.7.

  4. Audit · 4.11to4.09

    Pricing recomputed on 26 October 2026: listings added for a newly reviewed vendor (Lotus Peptide) moved the market median for the same products: pricing 7.9 to 7.8.

  5. Audit · 3.65to3.67

    Pricing recomputed on 24 October 2026: listings added for newly reviewed vendors moved the market median for the same products: pricing 7.8 to 7.9.

  6. Audit · 3.67to4.11

    Certificate library re-checked on 23 October 2026: fifteen new certificates confirmed at the issuing laboratories. Lab 1.5 to 2.3.

  7. Audit · 3.67to3.65

    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 7.9 to 7.8.

  8. Audit · 3.50to3.67

    Lab score recalculated on 22 October 2026 under the published core-product rule (A1b): a missing certificate on one of the 15 most widely carried products still counts fully, while on any other product it now counts at half weight, so a broad catalogue is not penalised as much for its breadth. Lab 1.2 to 1.5.

  9. Audit · 3.15to3.50

    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 7.0, transparency 2.5 to 3.5.

  10. Audit · Verified, no change

    Re-scored on 22 October 2026 under version 2 of our published rules. No score change. The testing gate is now computed from the certificates instead of set by hand: 2 of 20 products have a certificate from a directory laboratory with the key confirmed at the laboratory, fewer than the half required, so the testing cap applies; the cap sits above the weighted score, so it does not lower it.

  11. Audit · 3.24to3.15

    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 6.0 to 5.5, pricing 7.5 to 7.9, operating history 2.0 to 1.6, transparency 3.0 to 2.5.

  12. Audit · 3.51to3.24

    Lab score recalculated on 22 October 2026 under the uniform published rubric applied to every vendor: the Mistral Diagnostics certificates now score the fixed 2.0 the rubric gives a laboratory whose independence we could not establish; fixed deductions apply for one lot number printed on certificates for different compounds. Lab 1.7 to 1.2.

  13. Audit · 4.50to3.51

    Lab 3.5 to 1.7. Recomputed under our published rule, which averages the lab score over the products we list and counts a listed product with no certificate as zero: certificates verified at the laboratory cover 2 of the 20 products we list, six rest on a laboratory we could not establish as independent, and twelve have none.

  14. Audit · Initial audit

    lab 3.5 / shipping 6.0 / pricing 7.5 / tenure 2.0 / transparency 3.0.

Editor’s notes

Peptide.Express has a small amount of genuine third-party testing and a large amount it presents the same way. Retatrutide is scored from Freedom Diagnostics certificates that name Peptide.Express as the client and match the laboratory's own copies exactly, and it is now the only product of the 21 we list with a certificate from a laboratory we could establish. A fourth Freedom Diagnostics certificate, for MOTS-c 10mg, also matches the laboratory's copy and measured about 8% under its label, but the company has since posted newer certificates from Amino Metrics for MOTS-c 40mg and tirzepatide 20mg, and our rules score the newest certificate for each product. On 5 November 2026 both were confirmed at Amino Metrics, whose independence we could not establish, so they earn only the flat score our rules give such a laboratory. Both report net content above the 90 to 110% range they print (119.5% for MOTS-c and 123% for tirzepatide), with no fail printed for that line, and the company's lab results index still lists those two sizes as awaiting a certificate. Most of the other certificates come from Mistral Diagnostics, which we also could not establish as an independent laboratory; the 23 records we read there on 5 November 2026 each name Peptide.Express as the client and earn the same flat score. Three of the 21 products have no certificate at all, yet the index describes the whole set as third-party laboratory certificates. The catalogue also includes HGH, which we do not list, and HCG, now listed, whose certificate comes from Mistral Diagnostics. Prices run below the market across most of the range. Orders placed before 2 PM Eastern on business days ship the same day, but all sales are final, damage must be reported within 48 hours, and for a parcel marked delivered but not received the policy offers a carrier claim filed on the buyer's behalf if reported within 48 hours. The FAQ says refunds are issued for verified damaged or incorrect shipments, while the shipping page offers a replacement or store credit and refunds only in exceptional circumstances. The domain was registered in January 2026. Its Freedom Diagnostics and Amino Metrics reports repeat analyses also issued to LotusPeptide.com, with matching results and images; the client, lot label and QR code differ, so the two sets of results are not independent tests.

Peptide.Express 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).

RetatrutideVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.94%
Price per mg
$3.33$200.00 / 60mgbest of 6 sizes
TirzepatideVendor report (lab not established) (opens in new tab)

Amino MetricsTier Dtested

Purity
—
Price per mg
$1.67$100.00 / 60mgbest of 3 sizes
TesamorelinVendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$7.50$75.00 / 10mgbest of 2 sizes
MOTS-cVendor report (lab not established) (opens in new tab)

Amino MetricsTier Dtested

Purity
—
Price per mg
$2.50$100.00 / 40mgbest of 3 sizes
KLOWVendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$1.25$100.00 / 80mg
BPC-157 + TB-500No public COANo third-party COA was publicly available at audit time
Purity
—
Price per mg
$7.50$75.00 / 10mg
GHK-CuVendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$0.60$60.00 / 100mgbest of 2 sizes
SS-31No public COANo third-party COA was publicly available at audit time
Purity
—
Price per mg
$4.00$200.00 / 50mgbest of 2 sizes
CJC-1295 + IpamorelinVendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$6.00$60.00 / 10mg
NAD+Vendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$0.12$60.00 / 500mg
Kisspeptin-10Vendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$8.00$40.00 / 5mg
Melanotan-2Vendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$5.00$50.00 / 10mg
BPC-157Vendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$4.00$40.00 / 10mg
TB-500Vendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$4.50$45.00 / 10mgbest of 2 sizes
SermorelinVendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$7.00$70.00 / 10mg
DSIPNo public COANo third-party COA was publicly available at audit time
Purity
—
Price per mg
$4.50$45.00 / 10mg
IpamorelinVendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$6.00$60.00 / 10mgbest of 2 sizes
PT-141Vendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$5.50$55.00 / 10mg
EpitalonVendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$2.50$125.00 / 50mgbest of 2 sizes
SemaxVendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per mg
$5.00$50.00 / 10mg
HCGVendor report (lab not established) (opens in new tab)

Mistral DiagnosticsTier Dtested

Purity
—
Price per IU
—

Learn more about what Peptide.Express carries

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

Rated higher than Peptide.Express, with a reader code

Peptide.Express 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.

LabFirst Peptides

7.73/10 · Strong · carries 18 of the same products

Shop LabFirst Peptides → (opens in new tab)Read the review
Ascension Peptides

7.55/10 · Strong · carries 18 of the same products

Shop Ascension Peptides → (opens in new tab)Read the review
NextGen Peps

5.95/10 · Fair · carries 19 of the same products

Shop NextGen Peps → (opens in new tab)Read the review

Peptide.Express: Frequently Asked Questions

Is Peptide.Express legit?

Peptide.Express scores 3.76 out of 10 (Poor, #82 of 100) as of November 6, 2026 and does not meet our testing gate: 18 of the 21 products we score carry a certificate, 1 confirmed with the issuing lab (a lab we grade A); 17 of those certificates are vendor-issued or from a source whose independence we could not establish. Its strongest area is pricing (7.7/10); its weakest is operating history (1.7/10), with about nine months of records.

Is there a Peptide.Express promo code, coupon code, or discount code?

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

Does Peptide.Express use third-party lab testing?

Not to our verification standard. Fewer than half of this vendor's scored products have a certificate from an independent laboratory in our directory (not tier D) whose verification key we confirmed at that laboratory, so the testing gate applies. This records what we could verify; it is not a finding of a quality or safety problem. Laboratories on the certificates we hold: Freedom Diagnostics Testing. Certificates naming Mistral Diagnostics and Amino Metrics are not counted as independent testing: we could not establish that laboratory's independence, so each scores a flat 2.0 of 10.

Where can I see Peptide.Express' COAs?

In the "Peptide.Express COAs and lab test results" table on this page. We hold 1 certificate for Peptide.Express, covering 1 of the 21 products we track, issued by Freedom Diagnostics Testing. 1 product's certificate was confirmed at the issuing laboratory itself. Each row links the certificate, its lab, its test date and the purity it reports.

What peptides does Peptide.Express carry?

Peptide.Express carries Retatrutide, Tirzepatide, Tesamorelin, MOTS-c, KLOW, BPC-157 + TB-500, GHK-Cu, SS-31, and 13 more. Current per-milligram pricing, COA links, and verification keys for each are in the comparison table on this page.

Is the Peptide.Express 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 Peptide.Express → (opens in new tab)

Peptide.Express3.76Poor

1 confirmed at the lab

Visit Peptide.Express (opens in new tab)

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