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Northwest Peptides reviews

Unclaimed: This supplier has not claimed or verified this PepFinder profile. Everything shown comes from public sources and its own website.

Northwest Peptides at a glance

PepFinder Score
6.5/10
Based in
United States
Products tracked
67 across 47 peptides
Price level
In line with the US market median
Testing evidence
Stated by the store, no certificates on file
Verified store
Not yet
Last checked
8 Nov 2026

PepFinder currently tracks 67 products from Northwest Peptides across 47 peptides. Its listed prices per mg are in line with the US market median, across 66 listings we could compare. The cheapest listing we track is US$29.99. PepFinder last read its listings on 8 Nov 2026.

6.5/ 10

PepFinder rating

Out of 10

Customer rating

No customer reviews yet

Own this business? Claim this profile — free; reply to reviews and keep your details current.

Best for: Large product selection

  • Large range with 67 listed products
  • Accepts card payments, which carry chargeback protection
  • Delivery times not yet confirmed

How its prices compare · 66 listings checked against the market

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Affiliate link: we may earn a commission if you order. That never affects a rating, a review or where a store ranks. How this works.

Northwest Peptides review: what we found

Last checked 8 Nov 2026 · All sources

What PepFinder checked

Observed by our checks or taken from public records

  • We read 67 listings across 47 peptides from its website.Details · 8 Nov 2026
  • Its comparable prices are in line with the market median per mg (66 listings compared).Details · 8 Nov 2026

What the store says

The store's own statements, not checked by PepFinder

  • The supplier states its products are independently tested: “…Every product is independently third-party tested, fully batch documented, and available for fast, reliable fulfillment.…”States independent testing ↗ · 24 Sept 2026
  • The supplier names Freedom Diagnostics in connection with testing: “…50AM-20260508 99.81% Aug 29, 2026 Freedom Diagnostics ↗ View Product COA ↓ .…”Names Freedom Diagnostics ↗ · 24 Sept 2026
  • The supplier's website links to certificates of analysis or lab results. Documents are not reviewed until an editor checks them.Links a COA / lab results page ↗ · 24 Sept 2026
  • The website links to its refund policy page.Linked policy page ↗ · 24 Sept 2026
  • The website publishes an email address and a phone number.Publishes contact details ↗ · 24 Sept 2026

Not yet known

Gaps in the record, not faults

  • Whether its testing claims hold up: we have not yet seen and reviewed one of its certificates.
  • Not yet found on its website: shipping destinations, stated delivery time, customer support channels, domain age.Details
  • What ordering is like: no PepFinder customer has reviewed it or reported an order yet.

PepFinder has not bought from or tested this store's products. Request a correction with evidence.

No customer reviews of Northwest Peptides yet

Ordered from Northwest Peptides? A review or a short report of dispatch, delivery, payment or support helps the next buyer. Reviews are moderated; the store can reply but not remove them.

Rating by category

How we rate
Product selection
9.5 / 10
Value
6.0 / 10
Reliability
7.0 / 10
Delivery
Not enough data
Customer service
5.0 / 10
Payment options
5.0 / 10
Review sentiment
Not enough data
Testing and traceability
6.1 / 10
Information availability
Good
Why does PepFinder say this?

We can show a source for 10 of the 15 facts that matter about a store (who runs it, contact details, shipping, payments, testing, prices). Not yet confirmed: shipping destinations, stated delivery time, customer support channels, domain age, public batch numbers. “Not confirmed” means we have not found it, not that the answer is no. See sources.

Popular products

Checked 8 Nov 2026
ProductSupplier price
GLP-3
Retatrutide 60mg
GLP-3 ↗
US$279.99
US$4.67/mg
30% below average
GHK-CU
GHK-Cu 100mg
GHK-CU ↗
US$69.99
US$0.70/mg
average
5-amino-1mq
5-Amino-1MQ 50mg
5-amino-1mq ↗
US$89.99
US$1.80/mg
37% below average
BPC-157 10mg
BPC-157 10mg
BPC-157 10mg ↗
US$49.99
US$5.00/mg
14% below average
Cagrilintide 10mg
Cagrilintide 10mg
Cagrilintide 10mg ↗
US$99.99
US$10.00/mg
5% below average
Cerebrolysin 60mg
Cerebrolysin 60mg
Cerebrolysin 60mg ↗
US$41.99
US$0.70/mg
48% below average
Visit northwestpeptides.com

We may earn a commission. How this works

Prices as listed by the supplier when we last checked; the supplier confirms the final price. “vs market” compares price per mg with the median across tracked suppliers listing the same peptide in the same currency and serving this store's region, never converted.

How its prices compare

Northwest Peptides lists in USD. We compared 66 of its 67 listings with the median price per mg across the other stores that list the same peptide in USD and serve the US (18 to 186 stores per product). Prices are never converted between currencies, so this is a like-for-like comparison for a buyer in the US.

Taken together, its typical listing sits about level with that market median. Behind that: 28 products priced below most stores, 8 within 5% of the median, and 30 products priced above most stores. A store is rarely the cheapest or the dearest on everything, so the product you want matters more than the overall figure.

Priced below most stores (28)

ProductPricevs market median
Cerebrolysin 60mgUS$41.9948% below
SS-31 50mgUS$129.9947% below
5-Amino-1MQ 50mgUS$89.9937% below
MOTS-c 40mgUS$109.9935% below
Mazdutide 10mgUS$69.9933% below
Epitalon 50mgUS$99.9933% below

And 22 more in the full catalogue below.

Priced above most stores (30)

ProductPricevs market median
5-Amino-1MQ 5mgUS$29.99111% above
Glutathione 600mgUS$59.9989% above
Retatrutide 10mgUS$109.9965% above
MGF 2mgUS$44.9952% above
Semax 10mgUS$59.9950% above
SS-31 10mgUS$69.9943% above

And 24 more in the full catalogue below.

Price per mg lets vials of different sizes be compared. A higher price can reflect a smaller vial, included shipping, or testing the store pays for; the per-peptide price pages show every store side by side. Prices are as the store listed them when we last checked.

Pros and things to consider

Pros

  • Large range with 67 listed products
  • Accepts card payments, which carry chargeback protection
  • Refund or returns policy published

Things to consider

  • Delivery times not yet confirmed
  • Has not completed PepFinder verification (most suppliers have not)

From PepFinder's own checks of the supplier's website and public records. “Not confirmed” means we have not found it yet. Request a correction.

About Northwest Peptides

Who they are and what they sell

Northwest Peptides is based in the United States. It lists 67 products across 47 peptides. Shipping countries are not stated. It accepts Card. Its PepFinder Score is 6.5 out of 10. It has no customer reviews on PepFinder yet. PepFinder last read its website on 8 Nov 2026.

Northwest Peptides is a research-peptide store based in United States. We track 67 of its listings across 47 peptides, including Retatrutide, 5-Amino-1MQ, AOD-9604, Cagrilintide, CJC-1295 and CJC-1295 + Ipamorelin blend. It has no customer reviews on PepFinder yet.

To see whether Northwest Peptides is good value, compare its prices per mg with other stores on Retatrutide prices in the US, 5-Amino-1MQ prices in the US and AOD-9604 prices in the US. The “Is Northwest Peptides legit?” checks below cover contact details, payment, delivery and testing. Before a first order, read how to read a peptide COA and compare other suppliers in the US.

Store and verification

Unclaimed · 8 legitimacy checks

Store information

Trading name
Northwest Peptides
Location
United States
First tracked by us
24 Sept 2026
Estimated time active
Not known
Website
northwestpeptides.com We may earn a commission
Email
support@northwestpeptides.com
Phone
+12534102196
Not verifiedUnclaimed

Is Northwest Peptides legit? What we can check

No website can promise that a supplier is trustworthy. These are the checks we can make from public records, the supplier’s own website and our reviews. They are the same checks as in our guide to spotting an unreliable supplier.

  • Website history (Not known)

    Domain age not yet recorded.

  • Ways to get in touch (Not known)

    Contact channels not yet recorded.

  • Written policies (In place)

    Refund policy and terms published.

  • Independent testing (Not known)

    Northwest Peptides states that its products are independently tested, links a certificates-of-analysis or lab-results page, names Freedom Diagnostics. PepFinder has not yet collected or reviewed any of its certificates, so this is the supplier's own claim.

  • PepFinder verification (Not known)

    Not verified. Most suppliers are not; verification is voluntary.

  • Regulator notices and warnings (In place)

    None found in our records.

  • Card payments (In place)

    Card payment shown on the website, which usually allows a chargeback if an order goes wrong.

  • Customer reviews (Not known)

    No reviews on PepFinder yet.

Own this business? Claim this profile — free; reply to reviews and keep your details current.

Shipping and payments

1 payment methods

Shipping, payment and policies

Shipping policy clear
Not yet assessed
Payment methods
Card
Card payments
✓ Yes
Refund policy
Published
Refund policy clear
Not yet assessed
Terms of sale
Published
Privacy policy
Published

Testing and certificates of analysis

Northwest Peptides states that its products are independently tested, links a certificates-of-analysis or lab-results page, names Freedom Diagnostics. PepFinder has not yet collected or reviewed any of its certificates, so this is the supplier's own claim.

Testing transparency

Certificates of analysis
Testing claimed, not reviewedSupplier claims

Northwest Peptides states that its products are independently tested, links a certificates-of-analysis or lab-results page, names Freedom Diagnostics. PepFinder has not yet collected or reviewed any of its certificates, so this is the supplier's own claim.

Batch-specific COAs
Not yet assessed
States third-party testing
✓ Yes
Laboratories named by the supplier
Freedom Diagnostics
Lab accreditation identifiable
Not yet assessed
Batch numbers public
Not yet assessed
Manufacturing/source location disclosed
Not yet assessed
Testing documents we hold
None yet

We record what testing documents state and where they came from. We do not test products, and a certificate is not evidence that a product is safe for any use.

Full catalogue (67 products)

Every listing we track, with search, price per mg and price history

Listed catalogue and prices

67 products · last checked 8 Nov 2026
Product (as listed)PricePer mg
5-amino-1mq
5-Amino-1MQ
5-amino-1mq (opens northwestpeptides.com)
US$29.99
5mg
US$6.00
5-amino-1mq
5-Amino-1MQ
5-amino-1mq (opens northwestpeptides.com)
US$89.99
50mg
US$1.80
ACE-031 1mg
ACE-031
ACE-031 1mg (opens northwestpeptides.com)
US$99.99
1mg
US$99.99
AHK-CU 100mg
AHK-Cu
AHK-CU 100mg (opens northwestpeptides.com)
US$49.99
100mg
US$0.50
AICAR 50mg
AICAR
AICAR 50mg (opens northwestpeptides.com)
US$59.99
50mg
US$1.20
AOD-9604
AOD-9604
AOD-9604 (opens northwestpeptides.com)
US$44.99
5mg
US$9.00
AOD-9604
AOD-9604
AOD-9604 (opens northwestpeptides.com)
US$69.99
10mg
US$7.00
ARA-290 10mg
ARA-290
ARA-290 10mg (opens northwestpeptides.com)
US$59.99
10mg
US$6.00

The supplier confirms the final price and availability when you order. Product names, photos, quantities and prices are as publicly listed by the supplier; photos load from the supplier’s own website. “vs market” compares price per mg with the median across tracked suppliers listing the same peptide in the same currency; prices are never converted between currencies. We do not sell these products and give no guidance on their use.

Sources and evidence

Where each fact came from · information availability: good

Evidence Coverage: 73%

What we know about this supplier, and whether we can show you where it came from. “Not known” means we have not found it, not that the answer is no.

FactStatusLast observed
Business locationKnown, sourced45 days ago
Contact detailsKnown, sourced45 days ago
Shipping destinationsNot known—
Stated delivery timeNot known—
Payment methodsKnown, sourced45 days ago
Customer support channelsNot known—
Refund or returns policyKnown, sourced45 days ago
Terms of saleKnown, sourced45 days ago
Domain ageNot known—
Certificates of analysisKnown, sourced45 days ago
Independent testingKnown, sourced45 days ago
Testing laboratoryKnown, sourced45 days ago
Public batch numbersNot known—
Product catalogueKnown, sourced8 hours ago
PricesKnown, sourced66 of 67 listed prices can be compared per mg8 hours ago

Evidence and sources

TopicClaimBasisSource typeCapturedLast checkedSource
Contact detailsThe website publishes an email address and a phone number.Supplier-statedSupplier website24 Sept 202645 days agoPublishes contact details
Certificates of analysisThe supplier's website links to certificates of analysis or lab results. Documents are not reviewed until an editor checks them.Supplier-statedSupplier website24 Sept 202645 days agoLinks a COA / lab results page
Testing claimThe supplier states its products are independently tested: “…Every product is independently third-party tested, fully batch documented, and available for fast, reliable fulfillment.…”Supplier-statedSupplier website24 Sept 202645 days agoStates independent testing
Testing claimThe supplier names Freedom Diagnostics in connection with testing: “…50AM-20260508 99.81% Aug 29, 2026 Freedom Diagnostics ↗ View Product COA ↓ .…”Supplier-statedSupplier website24 Sept 202645 days agoNames Freedom Diagnostics
Refund policyThe website links to its refund policy page.Supplier-statedSupplier website24 Sept 202645 days agoLinked policy page
TermsThe website links to its terms page.Supplier-statedSupplier website24 Sept 202645 days agoLinked policy page
Pricing67 peptide listings read from the supplier's own catalogue. Prices and stock are as the site listed them at capture.Supplier-statedSupplier website24 Sept 20268 hours agoSupplier's public product catalogue
OtherThe website links to its privacy page.Supplier-statedSupplier website24 Sept 202645 days agoLinked policy page

Verified fact: checked by us against an independent source. Supplier-stated: what the supplier says, not independently confirmed. User report: submitted by a user. Editorial assessment: our judgement. Spotted an error? Request a correction.

Supplier history

  1. 6 Nov 2026CatalogueNo longer listed: Cagrilintide 10mg | Cagrilintide 10mg for Sale | Order Now (10mg)
  2. 6 Nov 2026CatalogueNo longer listed: BPC-157 + TB-500 Research Peptide Blend | Northwest Peptides
  3. 6 Nov 2026CatalogueNo longer listed: BPC-157 10mg Research Peptide | Northwest Peptides (10mg)
  4. 6 Nov 2026CatalogueNo longer listed: ARA-290 10mg Research Peptide | Northwest Peptides (10mg)
  5. 6 Nov 2026CatalogueNo longer listed: VIP 5mg Research Peptide | Northwest Peptides (5mg)
  6. 6 Nov 2026CatalogueNo longer listed: Thymosin Alpha-1 10mg | Northwest Peptides (10mg)
  7. 6 Nov 2026CatalogueNo longer listed: TB-500 10mg Research Peptide | Northwest Peptides (10mg)
  8. 6 Nov 2026CatalogueNo longer listed: SS-31 Research Peptide | Buy SS-31 Peptide Online | Buy Now
  9. 6 Nov 2026CatalogueNo longer listed: Sermorelin 10mg Research Peptide | Northwest Peptides (10mg)
  10. 6 Nov 2026CatalogueNo longer listed: Semax 10mg Research Peptide | Northwest Peptides (10mg)
  11. 6 Nov 2026CatalogueNo longer listed: Selank 10mg Research Peptide | Northwest Peptides (10mg)
  12. 6 Nov 2026CatalogueNo longer listed: PT-141 10mg Research Peptide | Northwest Peptides (10mg)
  13. 6 Nov 2026CatalogueNo longer listed: PNC-27 10mg Research Peptide | Northwest Peptides (10mg)
  14. 6 Nov 2026CatalogueNo longer listed: Oxytocin Acetate 10mg Research Peptide | Northwest Peptides (10mg)
  15. 6 Nov 2026CatalogueNo longer listed: MT-2 (Melanotan 2 Acetate) Research Peptide | Northwest Peptides
  16. 6 Nov 2026CatalogueNo longer listed: MOTS-c Research Peptide | Buy MOTS-c Online | Order Now
  17. 6 Nov 2026CatalogueNo longer listed: MGF 2mg Research Peptide | Northwest Peptides (2mg)
  18. 6 Nov 2026CatalogueNo longer listed: Melanotan-1 10mg Research Peptide | Northwest Peptides (10mg)
  19. 6 Nov 2026CatalogueNo longer listed: Mazdutide 10mg Research Peptide | Northwest Peptides (10mg)
  20. 6 Nov 2026CatalogueNo longer listed: LL-37 5mg Research Peptide | Northwest Peptides (5mg)
  21. 6 Nov 2026CatalogueNo longer listed: AOD-9604 Research Peptide | 5mg & 10mg | Northwest Peptides (5mg)
  22. 6 Nov 2026CatalogueNo longer listed: KPV 10mg Research Peptide | Northwest Peptides (10mg)
  23. 6 Nov 2026CatalogueNo longer listed: KLOW 80mg Research Peptide Blend | Northwest Peptides (80mg)
  24. 6 Nov 2026CatalogueNo longer listed: Kisspeptin-10 10mg Research Peptide | Northwest Peptides (10mg)
  25. 6 Nov 2026CatalogueNo longer listed: Ipamorelin Research Peptide | Northwest Peptides
  26. 6 Nov 2026CatalogueNo longer listed: IGF-1 LR3 1mg Research Peptide | Northwest Peptides (1mg)
  27. 6 Nov 2026CatalogueNo longer listed: Humanin 10mg Research Peptide | Northwest Peptides (10mg)
  28. 6 Nov 2026CatalogueNo longer listed: Hexarelin 5mg Research Peptide | Northwest Peptides (5mg)
  29. 6 Nov 2026CatalogueNo longer listed: Glutathione 600mg & 1500mg | Northwest Peptides (600mg)
  30. 6 Nov 2026CatalogueNo longer listed: GLP-3 Research Peptide | Buy Retatrutide Online | Shop Now

How PepFinder rates suppliers

What the rating and the customer rating each measure

The PepFinder rating (out of 10) is our own assessment of a supplier across reliability, product selection, pricing, delivery, customer service, website, payment options, packaging and how much information the supplier makes available. Each part is scored from what we can observe on its website, from public records and from customer reviews; parts we cannot observe are left unscored rather than marked down, and the rating is only shown once enough of them are known. It can move as more of the inputs become available.

The customer rating (out of 5 stars) is simply the average of approved customer reviews, shown from three reviews. Reviews are moderated before publication and suppliers can reply but not remove them.

The price comparison puts each listing's price per milligram against the median across every tracked supplier listing the same peptide in the same currency and serving the same region, so a UK store is measured against stores a UK buyer could order from. Prices are never converted between currencies. Suppliers cannot pay to change any of this; claiming or verifying a profile does not change the rating either.

View the full methodology

6.5/ 10

Transparency Score

Out of 10 · methodology v1 · updated 30 Sept 2026 · 50% of criteria assessed

Testing, documentation and business transparency. Separate from the PepFinder Score. Paid plans and sponsorship cannot change it. How it is calculated

Testing transparency25%6.1
Contact transparency20%10.0
Documentation15%3.8
User reviews15%n/a
Customer service10%n/a
Shipping transparency5%0.0
Longevity0%n/a
Policy transparency5%10.0
Show every factor

Testing transparency — 6.1

  • ◐ Links a certificates-of-analysis page (not yet reviewed by us)12.5/25
  • ? COAs are batch-specificnot assessed
  • ✓ States third-party (independent) testing20/20
  • ✓ Names the testing laboratories10/10
  • ? Laboratory accreditation is identifiablenot assessed
  • ✕ COAs reviewed by us in the last 12 months0/15

Contact transparency — 10.0

  • ✓ Contact details are public15/15
  • ? Manufacturing/source location disclosednot assessed

Documentation — 3.8

  • ◐ Sourced evidence on record32/40
  • ✕ Share of evidence independently verified0/30
  • ? Batch numbers are publicnot assessed
  • ✕ A testing document checked in the last 6 months0/15

User reviews

No approved reviews yet.

    Customer service

    Not yet assessed by the editorial team.

      Shipping transparency — 0.0

      • ? Shipping policy is clearnot assessed
      • ✕ Delivery estimate stated0/30
      • ✕ Shipping destinations listed0/30

      Longevity

      No domain record or founding date researched yet.

        Policy transparency — 10.0

        • ? Refund policy is clearnot assessed
        • ? Terms of sale are clearnot assessed
        • ✓ Refund or returns policy published20/20
        • ✓ Terms of sale published20/20
        • ✓ Privacy policy published20/20

        Compare Northwest Peptides with other suppliers

        SupplierRatingProducts
        Limitless Biotech logoLimitless Biotech5.4293Visit store
        Nationwide Peptides logoNationwide Peptides6.5134Visit store
        Peptide Warehouse logoPeptide Warehouse7.174Visit store

        We may earn a commission. How this works

        Northwest Peptides vs Limitless BiotechNorthwest Peptides vs Nationwide PeptidesNorthwest Peptides vs Peptide WarehouseAll alternatives to Northwest Peptides

        Northwest Peptides: common questions

        Is Northwest Peptides legit?

        We cannot vouch for any supplier, but we can report what the record shows. Northwest Peptides meets 3 of the 8 checks we make, with nothing flagged. Each check, and its source, is listed on this page.

        Where is Northwest Peptides based?

        Our records place Northwest Peptides in United States.

        Does Northwest Peptides publish certificates of analysis?

        Northwest Peptides states that its products are independently tested, links a certificates-of-analysis or lab-results page, names Freedom Diagnostics. PepFinder has not yet collected or reviewed any of its certificates, so this is the supplier's own claim.

        What payment methods does Northwest Peptides accept?

        The website shows: Card.

        Ready to shop at Northwest Peptides?

        • Large range with 67 listed products
        • Accepts card payments, which carry chargeback protection
        Visit northwestpeptides.com

        We may earn a commission. How this works

        Own this business? Claim this profile — free; reply to reviews and keep your details current.

        Run Northwest Peptides? Add a free PepFinder badge to your website.

        Something wrong on this page? Request a correction with evidence.

        This page provides supplier and market information only and is not medical advice. Disclaimer

        Northwest Peptides logo

        Northwest Peptides

        6.5Visit storeAffiliate link