Vendor review · #16 of 24
Merit Sciences review
Checked October 1, 2026 · No commercial relationship with this vendor. Links to vendors are marked as sponsored.
Score 85/100 · position 16 of 24
Good
Sells retatrutide by name ("RT3 - LY3437943", CAS 2381089-83-2) in 10mg and 30mg vials, shipped from Texas within the USA. Its latest ILS Laboratories reports (July 30, 2026) were confirmed on the lab's verification portal.
Worth knowing (not scored)
- Entity named on the site, but no matching registry record found
- ILS Laboratories verification portal confirmed both July 30, 2026 reports (tested for Merit Sciences; lot LOT2026-06-0001; purity 99.13% and 99.27%; net content 10.42 mg and 30.59 mg; identity retatrutide). The portal shows heavy metals as 'Not Detected' while the PDFs list small measured values for As, Pb and Cr.
- Older June 2026 retatrutide lots (MRT-2606-05, MRT-2606-15, and a 60mg lot MRT-2605-10 tested May 31, 2026) are shown with lab and manufacturer identifiers redacted.
- Support and claims email uses a different domain (info@meritpeptides.com); site footer shows rx@meritsciences.com.
- Catalog also includes semaglutide, tirzepatide (LY3298176), tesamorelin (TH9507), IGF-1 LR3 and kisspeptin; no steroids, SARMs, HGH, HCG or testosterone found.
Points in its favor
- Product page names retatrutide (LY3437943) and its CAS number
- Latest reports independently confirmed on the ILS Laboratories portal
- Ships within the USA with tracking; card checkout via PayPal
- 7-day replacement or refund for wrong, damaged, missing or lost items
Points against
- No street address or phone; legal entity state not confirmed
- Practitioner Program markets account pricing to licensed clinicians
- Conflicting statements on ship-from city (Dallas vs San Antonio) and free-shipping threshold ($100 vs $300)
- No Trustpilot profile
Retatrutide prices
| Product | Price | Per mg | Stock |
|---|---|---|---|
| RT3 - LY3437943 10mg | $99.99 | $10.00/mg | In stock |
| RT3 - LY3437943 30mg | $169.99 | $5.67/mg | In stock |
Prices in US dollars as shown on the Merit Sciences website on October 1, 2026, before shipping and any sales tax.
Shipping details confirmed — 20/20
- Ships from inside the US; delivery Standard ground 3-5 business days; expedited 1-2 business days; cost Standard ground free on orders of $100 or more; expedited extra fee at checkout; free over $100
Ships from: inside the US. Carriers: USPS, UPS. Dispatch: 1-2 business days (product page: 'Ships within 48 hours from San Antonio'). Delivery: Standard ground 3-5 business days; expedited 1-2 business days. Cost: Standard ground free on orders of $100 or more; expedited extra fee at checkout. Free shipping over $100. US only; no PO boxes, freight forwarders or APO/FPO. Product pages say 'Free shipping $300+', while the shipping policy says free standard ground at $100+. Policy says orders ship from Dallas, TX; product pages say San Antonio.
Payment methods listed — 15/15
- Payment methods listed: card
Payment options: card. Terms: payment through PayPal, including PayPal balance and debit/credit card via PayPal checkout. Returns: No change-of-mind returns; wrong, damaged, missing, lost or defective items reported within 7 days of delivery are replaced or refunded.
Quality claims stated — 25/25
- 2 retatrutide lab reports from a named lab, latest dated 2026-07-30; at least one matched on the lab’s own site
| Lab | Test | Task / ID | Strength | Batch | Result | Tested |
|---|---|---|---|---|---|---|
| ILS Laboratories | Identity & purity | #COA-2026-REQNW5✓ matched on lab site | 30 mgmeasured 30.59 mg | LOT2026-06-0001 | 99.27% | July 30, 2026 |
| ILS Laboratories | Identity & purity | #COA-2026-49Y4L7✓ matched on lab site | 10 mgmeasured 10.42 mg | LOT2026-06-0001 | 99.13% | July 30, 2026 |
| Lab not named | Identity & purity | — | 30 mg | MRT-2606-15 | 99.083% | June 27, 2026 |
| Lab not named | Identity & purity | — | 30 mg | MRT-2606-05 | 99.861% | June 17, 2026 |
Lab details are as published by the vendor. Reports marked ✓ were opened on the lab’s own verification page and matched the vendor’s copy.
Contact info listed — 15/15
- Contact details listed: email, address
Legal entity: Merit Sciences LLC. Footer '© 2026 Merit Sciences LLC · Dallas, TX'; Terms governed by Texas law. OpenCorporates lists a Delaware 'MERIT SCIENCES LLC' (company number 10654889, agent ZenBusiness Inc, Kent, DE) but nothing on the site ties it to this shop, so it is not treated as confirmed.
Independent rating found — 0/15
- No independent rating found
- Trustpilot: no profile (checked October 1, 2026)
Perks confirmed — 10/10
- Free US shipping on orders over $100; free standard ground shipping on orders of $100 or more (per shipping policy); 3-pack and 6-pack discounts; subscribe and save 10%
Sources
Everything above comes from these pages, checked on October 1, 2026:
- meritsciences.com/
- meritsciences.com/collections/all
- meritsciences.com/catalog
- meritsciences.com/sitemap.xml
- meritsciences.com/products/retatrutide-10mg
- meritsciences.com/products/ly3437943
- meritsciences.com/library/retatrutide
- meritsciences.com/coa
- meritsciences.com/coa/reports/merit-coa-retatrutide-10mg-lot2026-06-0001.pdf
- meritsciences.com/coa/reports/merit-coa-retatrutide-30mg-lot2026-06-0001.pdf
- meritsciences.com/coa/MRT-2606-05
- meritsciences.com/coa/MRT-2606-15
- portal.ils-lab.com/verify/hp9hQYt8qhPK03VF
- portal.ils-lab.com/verify/QmSJpAnrXm451scL
- meritsciences.com/shipping
- meritsciences.com/returns
- meritsciences.com/terms
- meritsciences.com/practitioners
- meritsciences.com/research-disclosure
- meritsciences.com/library/choosing-syringe-and-needle
- meritsciences.com/library/aliquoting-a-peptide-vial-safely
- opencorporates.com/companies?q=Merit+Sciences+LLC
- opencorporates.com/companies/us_de/10654889
- www.trustpilot.com/review/meritsciences.com
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