Legendary Peptides Discount Code: PROFPEPTIDE — Save 10%
legendarypeptides.com
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Use coupon code PROFPEPTIDE at Legendary Peptides to save 10% on your order. Prof. Peptide verifies this code directly with the vendor and updates it when it changes.
Legendary Peptides is a research peptide supplier run by Legendary Peptides LLC of Southeast Texas; Prof. Peptide randomly selected three of its Freedom Diagnostics certificates and matched each one against the laboratory's own records.
Key facts
- Price comparison
- 29 of 29 comparable products cost less than the median for the same product and size across every vendor Prof. Peptide tracks — before the code
- Catalog
- 40 products at the 2026-10-24 pull · 29 in Prof. Peptide’s price comparison, 28 of those in stock (a further 1 priced here with too few other vendors to compare against) · Vials, plus peptide blends and diluents
- Third-party testing
- Freedom Diagnostics
- Certificates of analysis
- A batch-specific certificate reached from the lot number printed on each vial rather than from a standalone index, covering a six-panel menu that adds a fentanyl screen on overseas-sourced material
- Prof. Peptide’s discount
- 10% off with code PROFPEPTIDE
- Code checked
- Prof. Peptide confirmed this rate in its partner dashboard on October 19, 2026.
Compare Legendary Peptides’ prices: Tirzepatide, Retatrutide, Adamax, Cagrilintide, TB-500, PT-141, NAD+, Selank
Overview
Legendary Peptides sells lyophilized research peptides and multi-peptide blends in vials, ten-vial bulk packs of some lines, and reconstitution saline. Its certificates come from Freedom Diagnostics.
Legendary Peptides states that every vial carries a lot number linked to its certificate, and that about 10% of its catalogue comes from international manufacturers. Orders over $200 ship free.
Legendary Peptides catalog & prices
The compounds are grouped below by Prof. Peptide's research-library categories.
- Metabolic & GLP-1
- Retatrutide (GLP3 (R)), Tirzepatide (GLP2 (T)), Cagrilintide, MOTS-c, 5-Amino-1MQ, L-Carnitine
- Recovery & Tissue Repair
- BPC-157, TB-500, a blend of BPC-157 and TB-500, KPV
- Growth Hormone
- Sermorelin, Tesamorelin, a blend of CJC-1295 (no DAC) and Ipamorelin, a blend of Tesamorelin and Ipamorelin
- Skin Health & Anti-Aging
- GHK-Cu, AHK-Cu, Melanotan II, GLOW, KLOW
- Gut Health & Immunity
- Thymosin Alpha-1
- Sleep & Recovery
- DSIP
- Longevity
- NAD+, Glutathione, Epithalon
- Sexual Health
- PT-141, Kisspeptin
- Also listed
- A Lipo-C formulation, reconstitution saline
Legendary lists retatrutide as GLP3 (R), and its Freedom Diagnostics certificate Lege2510010022, issued to Legendary Peptides for GLP3 (R) 15mg, gives Retatrutide as the identity. It sells tirzepatide as GLP2 (T), a mapping confirmed to Prof. Peptide first-hand.
Struck-through prices are Legendary Peptides’ 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
Legendary's certificates are issued by Freedom Diagnostics, each batch-matched to a lot number with a search code that opens the laboratory's own copy. They report identity by mass spectrometry, purity by HPLC with UV detection and net peptide content; the recent ones add a bacterial endotoxin test, a PCR microbial screen and a fentanyl screen. Legendary Peptides states that its products are tested for identity, net content, purity, conformity, sterility and endotoxins.
Prof. Peptide read three of its certificates at Freedom Diagnostics' own document store on October 11 and 22, 2026: Tesamorelin 10mg (99.60%), MOTS-c 40mg (99.251%) and the TESA + IPA 15mg tesamorelin/ipamorelin blend (99.59%), each naming Legendary Peptides 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 10 December 2025, 16 May 2026 and 20 May 2026.
Mots-c 40mg · lot 2025013
PassedFreedom Diagnostics · tested 10 December 2025 · certificate Lege2512080033
- Passed: MOTS-C — 99.251% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Identity — MOTS-C (names the labeled compound)
- Passed: Net Peptide Content — 43.21 mg (at least 90% of the labeled 40 mg)
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
TESA + IPA 15mg · lot 2026018
PassedFreedom Diagnostics · tested 16 May 2026 · certificate Lege2605140019
- Passed: Identity (LC-MS) — Ipamorelin/Tesamorelin (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.59% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — Ipamorelin – 5.20 mg; Tesamorelin – 9.94 mg (the components total 15.14 mg, at least 90% of the labeled 15 mg)
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
- Passed: Endotoxin Replicate 1 — Pass (spec Assay Sensitivity: ≤0.05 EU/mL)
- Passed: Endotoxin Replicate 2 — Pass (spec Assay Sensitivity: ≤0.05 EU/mL)
- Passed: Identity — Confirmed
Tesamorelin 10mg · lot 2026020
PassedFreedom Diagnostics · tested 20 May 2026 · certificate Lege2605190190
- Passed: Identity (LC-MS) — Tesamorelin (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.60% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 11.32 mg (at least 90% of the labeled 10 mg)
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
- Passed: Endotoxin Replicate 1 — Pass (spec Assay Sensitivity: ≤0.05 EU/mL)
- Passed: Endotoxin Replicate 2 — Pass (spec Assay Sensitivity: ≤0.05 EU/mL)
- Passed: Identity — Confirmed
All products are sold for laboratory research use only, to buyers aged 21 or older.
Payment and shipping
Orders placed before 12:00 PM Central on business days ship the same day, by FedEx 2-day, with tracking sent by email. Orders over $200 ship free. Legendary ships only to physical addresses in the United States, excluding Puerto Rico, and not to PO boxes, mailbox services or freight forwarders. It accepts Visa, American Express, Discover, Mastercard and Apple Pay.
Legendary does not accept returns, and orders cannot be cancelled or refunded once processed. A damaged or incorrect item reported within 7 days of delivery, with the order number and photos, is replaced once the claim is approved.
Customer service
Support runs by email at support@legendarypeptides.com, by phone at 409-617-1876 and through the contact form on its site. Legendary Peptides is Legendary Peptides LLC, based in Southeast Texas.
Ratings & reviews
Prof. Peptide checked Trustpilot on 20 October 2026. Trustpilot’s page for Legendary Peptides reads: “This profile has been removed.” Prof. Peptide checked Finnrick on 20 October 2026. Finnrick’s page for Legendary Peptides reads: “Not enough classifiable tests to rate this vendor yet.”
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Affiliate disclosure: Prof. Peptide is independently operated and may earn affiliate commissions on purchases made with its codes or through its links, at no additional cost to the buyer. Affiliate relationships never determine vendor inclusion, ranking, verification, or Prof. Peptide's editorial conclusions.