Crownwell Research Discount Code: PROFPEPTIDE — Save 10%
crownwellresearch.com
Updated
Use coupon code PROFPEPTIDE at Crownwell Research to save 10% on your order. Prof. Peptide verifies this code directly with the vendor and updates it when it changes.
Crownwell Research is a research peptide supplier based in Lakeland, Florida; Prof. Peptide randomly selected three of its Freedom Diagnostics certificates and matched each one against the laboratory's own records.
Key facts
- Price comparison
- 20 of 26 comparable products cost less than the median for the same product and size across every vendor Prof. Peptide tracks — before the code
- Catalog
- 52 products at the 2026-10-24 pull · 26 in Prof. Peptide’s price comparison, 26 of those in stock · Lyophilized powder in vials, plus bundles, intranasal solutions and bacteriostatic water
- Third-party testing
- Freedom Diagnostics
- Certificates of analysis
- Certificates published for each product on its own page and collected on a COA library page, every one issued by Freedom Diagnostics and carrying a search code that resolves on the laboratory's own domain
- Prof. Peptide’s discount
- 10% off with code PROFPEPTIDE
- Code checked
- Prof. Peptide confirmed this rate on October 13, 2026.
Compare Crownwell Research’s prices: GHK-Cu, BPC-157, KPV, Epitalon, TB-500, AOD-9604, Semaglutide, Retatrutide
Overview
Crownwell Research sells lyophilized research peptides and blends in vials, multi-vial kits and bundles, intranasal solutions and bacteriostatic water, with its GLP line under its own product names, and publishes Freedom Diagnostics certificates on its product pages and on a COA library page.
Crownwell Research states that its catalog is sourced from GMP-compliant facilities, and that inventory is kept refrigerated or frozen until dispatch.
Crownwell Research catalog & prices
The compounds are grouped below by Prof. Peptide's research-library categories.
- Metabolic & GLP-1
- Retatrutide (GLP3-R, GLP3-Reta), Tirzepatide (GLP2-T, GLP2-Tirz), Semaglutide (GLP1-Sema), Cagrilintide, AOD-9604, MOTS-C, Lipo-C with B12
- Recovery & Tissue Repair
- BPC-157, TB-500, Wolverine Stack, KLOW
- Growth Hormone
- CJC-1295 (No DAC), Ipamorelin
- Skin Health & Anti-Aging
- GHK-Cu
- Gut Health & Immunity
- KPV, Thymosin Alpha-1
- Longevity
- Epithalon, NAD+, Glutathione, SS-31
- Bioregulators
- Livagen, Cortagen, Bioregulator Trio
Crownwell sells retatrutide, tirzepatide and semaglutide under its own GLP names, and its product pages name the compound behind each: its GLP3-R listings read “Retatrutide or GLP3-R”, its GLP2-Tirz 10mg listing reads “GLP2-Tirz 10mg is tirzepatide”, and its 5mg listing whose compound name is GLP1-Sema describes each vial as semaglutide. The Freedom Diagnostics certificates for these lines name the analyte only as GLP RT, GLP TZ and GLP SM.
Struck-through prices are Crownwell Research’s list price; the bold figure is the price once code PROFPEPTIDE is applied at checkout. Prices current as of October 24, 2026.
Testing: Labs & Certificates of Analysis
Crownwell's certificates are issued by Freedom Diagnostics and published on a COA library page and on product pages. Each carries a search code that resolves at coas.freedomdiagnosticstesting.com, the laboratory's own host. The five Prof. Peptide read on September 23, 2026 were byte-identical to the copies Crownwell serves and each names Crownwell Research as the client: Reta-GLP3 10mg (lot CW-RT10001, 99.09% averaged across two vials), Tirz-GLP 2 10mg (lot CW-TZ10001, 99.881%), BPC-157 10mg (lot CW-BP10002, 99.32% averaged), Adamax 10mg (lot CW-AD10001, 99.88%) and a separate endotoxin report for GLP3-R 30mg (lot CW-RT30003), a pass on both replicates at an assay sensitivity of 0.05 EU/mL. Analysis is HPLC with UV detection coupled with mass spectrometry; the endotoxin report uses a Limulus Amebocyte Lysate assay under USP <85>.
Prof. Peptide drew certificates addressed to Crownwell Research at random from Freedom Diagnostics' public index on October 11 and 22, 2026 — Ipamorelin 10mg (99.86%), Cagrilintide 10mg (99.83%) and Sema-GLP1 10mg (99.411%) — and read each at the laboratory's own document store, where each names Crownwell Research as the client. The panel below lists every certificate's own results.
Prof. Peptide Verification
Verified · 22 October 2026
Prof. Peptide identified the lab, matched the certificates on its own website, and read every test result.
Lab identified
PassedCertificates verified
Passed3 of 3 matched on Freedom Diagnostics’ own website.
The three certificates were tested on 3 February and 6 May 2026.
Cagrilintide 10mg · lot CW-CG10001
PassedFreedom Diagnostics · tested 6 May 2026 · certificate Crow2505040614
- Passed: Identity (LC-MS) — Cagrilintide (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.83% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 11.22 mg (at least 90% of the labeled 10 mg)
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
Ipamorelin 10mg · lot CW-IP10001
PassedFreedom Diagnostics · tested 3 February 2026 · certificate Crow2602020052
- Passed: Ipamorelin — 99.86% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Identity — Ipamorelin (names the labeled compound)
- Passed: Net Peptide Content — 14.10 mg (at least 90% of the labeled 10 mg)
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
Sema-GLP1 10mg · lot CW-SM10001
PassedFreedom Diagnostics · tested 3 February 2026 · certificate Crow2602020055
- Passed: GLP SM — 99.411% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Not graded, the laboratory prints “GLP SM”, not a compound name: Identity — GLP SM
- Passed: Net Peptide Content — 10.79 mg (at least 90% of the labeled 10 mg)
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
All products are sold for laboratory and research use only.
Payment and shipping
Crownwell Research ships within the United States only: orders go only to valid US addresses, not to international destinations or freight-forwarding addresses meant for export. Orders are processed within 1–2 business days, and orders placed before 2:00 PM EST are typically dispatched the same day; standard shipping takes 3–5 business days, expedited 2, and overnight the next business day. Lyophilized products ship at ambient temperature, with insulated packaging and cold packs for compounds that need temperature control.
All sales are final. A damaged or incorrect item reported within 48 hours of delivery with photographs is replaced, an order not yet handed to the courier can be cancelled for a full refund, and a package the carrier confirms lost is reshipped. Crownwell Research accepts debit or credit card, PayPal, eCheck from a bank account, Cash App and Zelle at checkout.
Customer service
Support runs by phone at 321-315-2583 and through the contact form on its site. Crownwell Research is based in Lakeland, Florida.
Ratings & reviews
Prof. Peptide checked Trustpilot and Finnrick on 20 October 2026. There were no results on either site as of that date.
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