Vendor review · #7 of 24
Midwest Peptide review
Checked October 1, 2026 · No commercial relationship with this vendor. Links to vendors are marked as sponsored.
Score 100/100 · position 7 of 24
Excellent
Midwest Peptide (Midwest BioResearch LLC, Mission, Kansas) sells retatrutide as "GLP-3 RT" in 10mg, 20mg and 30mg vials and ships within the US only. Each strength has a 2026 lab report (ILS Laboratories for 10mg, Precision Mass Spec for 20mg and 30mg) that we confirmed on the labs' own verification pages.
Worth knowing (not scored)
- Product is named "GLP-3 RT"; the ILS report lists identity as Retatrutide and the Precision reports list CAS 2381089-83-2.
- Product pages show a crossed-out compare-at price (10mg $89.99, 20mg $169.99, 30mg $224.99); listed prices are the regular prices before the WEBACK30 code.
- Product structured data shows a $49.99 price and OutOfStock, which does not match the visible variant prices and stock counts (90 / 33 / 437 units).
- Card checkout is currently unavailable per the FAQ; payment is by Zelle to a number registered to Midwest BioResearch LLC.
Points in its favor
- Registered Kansas LLC named on the site, active and in good standing
- Lab reports for all three strengths, dated August-September 2026, confirmed on the labs' own sites
- Free shipping over $75 and same-day dispatch before 2 PM CST
- 30-day return window for unopened products
- Trustpilot 4.9 from 312 reviews
Points against
- Card payments currently unavailable; Zelle only
- Only a city (Mission, KS) given, no street address
- Product sold under a code name (GLP-3 RT)
- Blog includes rodent dosing and reconstitution figures
Retatrutide prices
| Product | Price | Per mg | Stock |
|---|---|---|---|
| GLP-3 RT 10mg | $69.99 | $7.00/mg | In stock |
| GLP-3 RT 20mg | $134.99 | $6.75/mg | In stock |
| GLP-3 RT 30mg | $199.99 | $6.67/mg | In stock |
Prices in US dollars as shown on the Midwest Peptide website on October 1, 2026, before shipping and any sales tax.
Shipping details confirmed — 20/20
- Ships from inside the US; delivery 3-5 business days from shipment; cost $6.99 flat under $75; free over $75
Ships from: inside the US. Carriers: UPS, USPS. Dispatch: Same business day for orders placed before 2:00 PM CST, Monday-Friday. Delivery: 3-5 business days from shipment. Cost: $6.99 flat under $75. Free shipping over $75. Ships within the United States only; no PO Boxes.
Payment methods listed — 15/15
- Payment methods listed: Zelle / Venmo / Cash App
Payment options: Zelle / Venmo / Cash App. FAQ: Zelle only right now; card payments through their processor are 'temporarily unavailable'. Terms also mention CashApp. Returns: Unopened, sealed products can be returned within 30 days of delivery; buyer pays return shipping unless the item arrived damaged. Damaged items reported within 48 hours with photos are replaced.
Quality claims stated — 25/25
- 3 retatrutide lab reports from a named lab, latest dated 2026-09-22; at least one matched on the lab’s own site
| Lab | Test | Task / ID | Strength | Batch | Result | Tested |
|---|---|---|---|---|---|---|
| Precision Mass Spec | Identity & purity | #PMS-0097405814✓ matched on lab site | 30 mgmeasured 31.21 mg | MPRT3002-MW-RT3W-0911 | 99.8% | September 22, 2026 |
| Precision Mass Spec | Identity & purity | #PMS-0097524283✓ matched on lab site | 20 mgmeasured 21.12 mg | MPRT2008- MWP-RT3W-0821 | 99.74% | September 22, 2026 |
| ILS Laboratories | Identity & purity | #COA-2026-X3UEQO✓ matched on lab site | 10 mgmeasured 10.55 mg | MPRT010 | 99.77% | August 25, 2026 |
Lab details are as published by the vendor. We opened every report on the lab’s own verification page and compared it with the vendor’s copy.
Contact info listed — 15/15
- Contact details listed: email, phone, address
Legal entity: Midwest BioResearch LLC, registered in Kansas, file number 10045027, status active and in good standing. Address on record: Registered agent: Registered Agents Inc, 4601 E. Douglas St. STE 150, Wichita, KS 67218. Registry record. Named as site operator in the Terms of Service and in the footer copyright line. The Kansas record (number, status, agent) was read on OpenCorporates, which mirrors the Kansas Secretary of State.
Independent rating found — 15/15
- Trustpilot 4.9 from 312 reviews
- Trustpilot: 4.9 from 312 reviews (checked October 1, 2026) — view
Perks confirmed — 10/10
- free shipping over $75; 30% sitewide code WEBACK30 shown on site; automatic bundle discounts of 8-20% on carts of $150-$450+; rewards points with a free account
Sources
Everything above comes from these pages, checked on October 1, 2026:
- midwestpeptide.com/
- midwestpeptide.com/products/glp-3-rt
- midwestpeptide.com/shipping-policy
- midwestpeptide.com/refund-policy
- midwestpeptide.com/terms
- midwestpeptide.com/about
- midwestpeptide.com/contact
- midwestpeptide.com/faq
- midwestpeptide.com/coa
- midwestpeptide.com/reputation
- midwestpeptide.com/sitemap.xml
- midwestpeptide.com/blog/glp-3-r-peptide-a-new-frontier-in-metabolic-and-endocrine-studies
- midwestpeptide.com/blog/the-role-of-glp-3-r-in-metabolism-and-energy-balance
- midwestpeptide.com/blog/glp-3-r-and-laboratory-safety-best-practices-for-research-use-only-peptides
- hogghyofbhcfjhcidkuj.supabase.co/storage/v1/object/public/product_images_coa/glp-3-rt-10mg-coa-1790777325018.jpeg
- hogghyofbhcfjhcidkuj.supabase.co/storage/v1/object/public/product_images_coa/glp-3-rt-20mg-coa-1790378397461.png
- hogghyofbhcfjhcidkuj.supabase.co/storage/v1/object/public/product_images_coa/glp-3-rt-30mg-coa-1790378438562.png
- portal.ils-lab.com/verify/ShWqVgl1cyfqQHY2
- testwithprecision.com/coa-library?code=PMS-0097524283
- testwithprecision.com/coa-library?code=PMS-0097405814
- opencorporates.com/companies/us_ks/10045027
- www.trustpilot.com/review/midwestpeptide.com
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