Fusion Peptide Coupon Code: PROFPEPTIDE — Save 15%
fusionpeptide.com
Updated
Use discount code PROFPEPTIDE at Fusion Peptide to save 15% on your order. Prof. Peptide confirms this code with the vendor, tests it at checkout, and updates it when it changes.
Fusion Peptide is a research peptide supplier based in Glendale, Arizona; Prof. Peptide matched 23 of its Freedom Diagnostics certificates at the lab.
Key facts
- Catalog
- 140 products at the 2026-10-23 pull · 45 in Prof. Peptide’s price comparison, 45 of those in stock (a further 55 priced here with too few other vendors to compare against) · Lyophilized powder in vials, plus nasal-spray formats (MT2, MT1/MT2, Selank)
- Third-party testing
- Vanguard Laboratory, MZ Biolabs & Freedom Diagnostics
- Certificates of analysis
- COA page listing certificates per product on the vendor’s own domain, open without passing the site’s entry gate, with the certificates published as page images rather than text documents
- Prof. Peptide’s discount
- 15% off with code PROFPEPTIDE
- Code checked
- Prof. Peptide confirmed this rate in a cart test on October 21, 2026.
Compare Fusion Peptide’s prices: AOD-9604, Thymalin, MOTS-C, DSIP, PT-141, SS-31, Melanotan I, Thymosin Alpha-1
Overview
Fusion Peptide sells lyophilized research peptides in vials, and lists several in other formats: nasal-spray kits (Melanotan II, a Melanotan I and Melanotan II blend, Selank and NAD+) and a BPC-157 and TB-500 topical gel. Its certificates, from Freedom Diagnostics, Vanguard Laboratory and MZ Biolabs, are public.
Fusion's Terms carry a Product Quality Guarantee: the vendor states that it refunds an independent HPLC test and the order if the results are negative.
Fusion Peptide catalog & prices
The compounds are grouped below by Prof. Peptide's research-library categories. Fusion also stocks amino and vitamin blends and other items that sit outside that library's scope.
- Metabolic & GLP-1
- Semaglutide (FUS-1 SM), Tirzepatide (FUS-2 TZ), Retatrutide (FUS-3 RT), Cagrilintide, CagriSema (Cagrilintide and FUS-1 SM), a blend of Cagrilintide and Retatrutide (sold as Cagrilintide/FUS-3 RT), Adipotide, AOD-9604, MOTS-c, SLU-PP-332, Tesofensine
- Recovery & Tissue Repair
- BPC-157, TB-500, a blend of BPC-157 and TB-500 (vial or topical gel), Cibinetide (ARA-290), MATRIX-3 (KPV, TB-500 and BPC-157), PNC-27
- Growth Hormone
- CJC-1295 (with DAC and without DAC), a blend of CJC-1295 (no DAC) and Ipamorelin, GHRP-2, GHRP-6, Ipamorelin, Sermorelin, Tesamorelin
- Cognitive & Nootropic
- PE 22-28, Selank, Semax, Dihexa, NEXUS-4 (PE 22-28, N-Acetyl Semax Amidate, N-Acetyl Selank Amidate and Pinealon)
- Skin Health & Anti-Aging
- GHK-Cu, GLOW, KLOW, Melanotan I, Melanotan II, SNAP-8
- Gut Health & Immunity
- KPV, Thymosin Alpha-1, VIP
- Sleep & Recovery
- DSIP
- Longevity
- Epitalon, Glutathione, NAD+, SS-31
- Sexual Health
- Kisspeptin-10, Oxytocin, PT-141
Fusion lists semaglutide, tirzepatide and retatrutide as FUS-1 SM, FUS-2 TZ and FUS-3 RT. FUS-1 SM and FUS-2 TZ are identified by the CAS numbers printed on Fusion's own product pages (910463-68-2 and 2023788-19-2), both registry-verified. FUS-3 RT's printed CAS number and formula do not match retatrutide's registry values; it is listed as retatrutide on the strength of the same product line and Fusion's own description of a peptide engineered for triple receptor activity. Cagrilintide / FUS-1 SM is a 2.5mg/2.5mg vial of cagrilintide and semaglutide.
The blends, each from Fusion's own certificate or product text: KLOW is GHK-Cu 50mg, BPC-157 10mg, TB-500 10mg and KPV 10mg (80mg), and its Vanguard certificate reports 48.9 mg, 10.2 mg, 10.44 mg and 9.98 mg. GLOW is GHK-Cu 50mg, BPC-157 10mg and TB-500 10mg (70mg); an 84mg GLOW is also listed. The BPC-157 / TB-500 Blend is sold as 6mg of each per vial, and a Vanguard certificate for its 10 mg/10 mg vial reports 11.11 mg and 10.89 mg; it is also sold as a topical gel at 500mcg of each per pump. CJC-1295 no DAC + Ipamorelin comes as 5mg & 5mg, 10mg & 10mg and 13mg & 13mg.
Four compounds are also sold as nasal-spray kits — Melanotan II, a blend of Melanotan I and Melanotan II, Selank and NAD+ — and a reconstitution solution and a vial case are listed alongside the compounds. Format is not a category of its own here: the sprays and the gel are the same compounds listed above in a different presentation.
Struck-through prices are Fusion Peptide’s list price; the bold figure is the price once code PROFPEPTIDE is applied at checkout. Prices current as of October 23, 2026.
Testing: Labs & Certificates of Analysis
Fusion publishes a certificate library at fusionpeptide.com/coa. Prof. Peptide counted 83 full-size certificate images there on October 21, 2026, revealed by per-product accordions; because some compounds carry a multi-page certificate, that counts images, not reports. Three laboratories are named on Fusion's certificates — Freedom Diagnostics, Vanguard Laboratory of Olympia, Washington and MZ Biolabs of Tucson, Arizona — each named on the certificate images.
What the laboratory shows. Fusion's site carries 23 Freedom Diagnostics certificates, 8 on its /coa/ page and 15 on product pages. On October 21, 2026 Prof. Peptide matched every one at Freedom Diagnostics' own document store, with the same lot, dates and results as Fusion's copy. Freedom Diagnostics' records name the client as Fusion Testing Lab, Fusion Peptide's testing account, as confirmed to Prof. Peptide first-hand. The certificates report purity by HPLC-UV from 99.00% to 99.95%, identity by LC-MS and net content, and eight also report two endotoxin replicates, each a pass.
Fusion's /coa/ page says “ALL COAs are listed on this page as well as the product page for your product.” 15 of the 23 Freedom Diagnostics certificates are on product pages only.
Prof. Peptide Verification
Verified · October 21, 2026
Prof. Peptide identified the lab, matched the certificates on its own website, and read every test result.
Lab identified
PassedCertificates verified
Passed23 of 23 matched on Freedom Diagnostics’ own website. Freedom Diagnostics’ records name the client as Fusion Testing Lab, Fusion Peptide’s testing account, as confirmed to Prof. Peptide first-hand.
The 23 certificates were tested on May 11, May 19, May 20, May 23, May 24, May 29, May 30, June 1, June 4, June 18, June 23 and July 2, 2026.
BPC/157/TB-500 5mg/5mg · lot 20261011
PassedFreedom Diagnostics · tested May 11, 2026 · certificate FUSI2605080056 · client named Fusion Testing Lab · on the BPC-157 / TB-500 Blend listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — BPC-157/Thymosin Beta-4 (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.35% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — BPC-157 – 6.90 mg; Thymosin Beta-4 – 6.44 mg (at least 90% of the labeled 5 mg)
- Passed: Identity — Confirmed
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
Cagrilintide (CAGRI 10mg) · lot 20261052
Net Content: 8.24 mg against a labeled 10 mgFreedom Diagnostics · tested May 24, 2026 · certificate Fusi2605220205 · client named Fusion Testing Lab · on the Cagrilintide listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — Cagrilintide (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.82% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- 8.24 mg against a labeled 10 mg: Net Content — 8.24 mg
- Passed: Identity — Confirmed
- 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)
CJC-1295 (CND10) · lot 20261112GN
PassedFreedom Diagnostics · tested June 23, 2026 · certificate FUSI2606190415 · client named Fusion Testing Lab · on the CJC-1295 without DAC listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — CJC-1295 (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.30% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Not graded, no labeled amount to compare it with: Net Content Average — 11.53 mg
- Passed: Purity — Vial 1: 99.26%; Vial 2: 99.34% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Not graded, no labeled amount to compare it with: Net Content — Vial 1: 11.34 mg; Vial 2: 11.72 mg
- Passed: Identity — Confirmed
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
Cortagen 20mg · lot 20261070
PassedFreedom Diagnostics · tested May 30, 2026 · certificate FUSI2605280288 · client named Fusion Testing Lab · on the Cortagen listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — Cortagen (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.10% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 21.14 mg (at least 90% of the labeled 20 mg)
- Passed: Identity — Confirmed
- 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)
Dihexa 10mg · lot 20261002
Net Content: 8.59 mg against a labeled 10 mgFreedom Diagnostics · tested May 23, 2026 · certificate Fusi2605210365 · client named Fusion Testing Lab · on the Dihexa listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — Dihexa (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.18% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- 8.59 mg against a labeled 10 mg: Net Content — 8.59 mg
- Passed: Identity — Confirmed
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
Dihexa 10mg · lot 20261059
PassedFreedom Diagnostics · tested May 24, 2026 · certificate Fusi2605220051 · client named Fusion Testing Lab · on the Dihexa listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — Dihexa (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.58% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 13.63 mg (at least 90% of the labeled 10 mg)
- Passed: Identity — Confirmed
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
GHK-CU 50mg · lot 20261041
Net Content: 44.25 mg against a labeled 50 mgFreedom Diagnostics · tested May 19, 2026 · certificate FUSI2605180363 · client named Fusion Testing Lab · on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — GHK-Cu (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.86% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- 44.25 mg against a labeled 50 mg: Net Content — 44.25 mg
- Passed: Identity — Confirmed
- Passed: Appearance — Blue Lyophilized Powder (the expected blue 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)
GHK-Cu/BPC-157/Thymosin Beta-4 (BBG70 70mg) · lot 20261010
PassedFreedom Diagnostics · tested May 11, 2026 · certificate FUSI2605080060 · client named Fusion Testing Lab · on the GLOW listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — GHK-Cu/BPC-157/Thymosin Beta-4 (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.85% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — GHK-Cu – 54.92 mg; BPC-157 – 12.78 mg; Thymosin Beta-4 – 11.69 mg (the components total 79.39 mg, at least 90% of the labeled 70 mg)
- Passed: Identity — Confirmed
- Passed: Appearance — Blue Lyophilized Powder (the expected blue lyophilized form)
GHK-CU100 100mg · lot 20261014
PassedFreedom Diagnostics · tested May 11, 2026 · certificate FUSI2605080062 · client named Fusion Testing Lab · on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — GHK-Cu (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.94% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 112.43 mg (at least 90% of the labeled 100 mg)
- Passed: Identity — Confirmed
- Passed: Appearance — Blue Lyophilized Powder (the expected blue lyophilized form)
GHKCU 50mg · lot 20261096
PassedFreedom Diagnostics · tested June 1, 2026 · certificate Fusi2605290409 · client named Fusion Testing Lab · on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — GHK-Cu (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.80% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 59.79 mg (at least 90% of the labeled 50 mg)
- Passed: Identity — Confirmed
- Passed: Appearance — Blue Lyophilized Powder (the expected blue lyophilized form)
Glutathione 1200mg · lot 20261106
PassedFreedom Diagnostics · tested June 4, 2026 · certificate FUSI2606020302 · client named Fusion Testing Lab · on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — Glutathione (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.00% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 1106.32 mg (at least 90% of the labeled 1200 mg)
- Passed: Identity — Confirmed
- 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)
Ipamorelin/Tesamorelin (TI15 15mg) · lot 20261124
PassedFreedom Diagnostics · tested June 18, 2026 · certificate FUSI2606160388 · client named Fusion Testing Lab · on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — Ipamorelin/Tesamorelin (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.92% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content Average — Ipamorelin - 4.67 mg; Tesamorelin - 13.48 mg (the components total 18.15 mg, at least 90% of the labeled 15 mg)
- Passed: Purity — Vial 1: 99.90%; Vial 2: 99.93% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — Vial 1: Ipamorelin – 4.63 mg, Tesamorelin – 13.21 mg; Vial 2: Ipamorelin – 4.70 mg, Tesamorelin – 13.75 mg (the components total 17.84 mg and 18.45 mg, at least 90% of the labeled 15 mg)
- Passed: Identity — Confirmed
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
Kisspeptin 10mg · lot 20261048
PassedFreedom Diagnostics · tested May 20, 2026 · certificate FUSI2605190076 · client named Fusion Testing Lab · on the Kisspeptin-10 listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — Kisspeptin (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.08% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 9.20 mg (at least 90% of the labeled 10 mg)
- Passed: Identity — Confirmed
- 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)
Kisspeptin 10mg · lot 20261109
PassedFreedom Diagnostics · tested June 4, 2026 · certificate FUSI2606020310 · client named Fusion Testing Lab · on the Kisspeptin-10 listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — Kisspeptin (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.46% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 9.07 mg (at least 90% of the labeled 10 mg)
- Passed: Identity — Confirmed
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
KPV (KP10 10mg) · lot 20261126
PassedFreedom Diagnostics · tested June 18, 2026 · certificate FUSI2606160396 · client named Fusion Testing Lab · on the KPV listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — KPV (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.61% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content Average — 10.54 mg (at least 90% of the labeled 10 mg)
- Passed: Purity — Vial 1: 99.53%; Vial 2: 99.69% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — Vial 1: 10.37 mg; Vial 2: 10.70 mg (at least 90% of the labeled 10 mg)
- Passed: Identity — Confirmed
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
KPV 10mg · lot 20261159CE
PassedFreedom Diagnostics · tested July 2, 2026 · certificate FUSI2606300013 · client named Fusion Testing Lab · on the KPV listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — KPV (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.85% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content Average — 12.18 mg (at least 90% of the labeled 10 mg)
- Passed: Purity — Vial 1: 99.80%; Vial 2: 99.89% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — Vial 1: 12.69 mg; Vial 2: 11.66 mg (at least 90% of the labeled 10 mg)
- Passed: Identity — Confirmed
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
KPV/Thymosin Beta-4/BPC-157 (BBK 30mg) · lot 20261123
PassedFreedom Diagnostics · tested June 18, 2026 · certificate FUSI2606160380 · client named Fusion Testing Lab · on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — KPV/Thymosin Beta-4/BPC-157 (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.33% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content Average — KPV - 11.40 mg; Thymosin Beta-4 - 11.92 mg; BPC-157 - 11.86 mg (the components total 35.18 mg, at least 90% of the labeled 30 mg)
- Passed: Purity — Vial 1: 99.34%; Vial 2: 99.32% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — Vial 1: KPV – 11.79 mg, BPC-157 – 12.20 mg, Thymosin Beta-4 – 11.98 mg; Vial 2: KPV – 11.01 mg, BPC-157 – 11.53 mg, Thymosin Beta-4 – 11.86 mg (the components total 35.97 mg and 34.4 mg, at least 90% of the labeled 30 mg)
- Passed: Identity — Confirmed
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
Oxytocin 10mg · lot 20261076
PassedFreedom Diagnostics · tested May 29, 2026 · certificate Fusi2605270278 · client named Fusion Testing Lab · on the Oxytocin listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — Oxytocin (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.35% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 13.47 mg (at least 90% of the labeled 10 mg)
- Passed: Identity — Confirmed
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
Pinealon/N-Acetyl Selank Amidate/PE-22-28/N-Acetyl Semax Amidate (4QUAD 48mg) · lot 20261125
PassedFreedom Diagnostics · tested June 18, 2026 · certificate FUSI2606160376 · client named Fusion Testing Lab · on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — Pinealon/N-Acetyl Selank Amidate/PE-22-28/N-Acetyl Semax Amidate (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.77% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content Average — Pinealon - 12.81 mg; N-Acetyl Selank Amidate - 9.56 mg; PE-22-28 - 8.55 mg; N-Acetyl Semax Amidate - 21.69 mg (the components total 52.61 mg, at least 90% of the labeled 48 mg)
- Passed: Purity — Vial 1: 99.76%; Vial 2: 99.77% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — Vial 1: Pinealon – 13.02 mg, N-Acetyl Selank Amidate – 9.62 mg, PE-22-28 – 8.74 mg, N-Acetyl Semax Amidate – 22.07 mg; Vial 2: Pinealon – 12.60 mg, N-Acetyl Selank Amidate – 9.51 mg, PE-22-28 – 8.36 mg, N-Acetyl Semax Amidate – 21.31 mg (the components total 53.45 mg and 51.78 mg, at least 90% of the labeled 48 mg)
- Passed: Identity — Confirmed
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
PT-141 10mg · lot 20261054
PassedFreedom Diagnostics · tested May 24, 2026 · certificate Fusi2605220056 · client named Fusion Testing Lab · on the PT-141 listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — PT-141 (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.95% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 11.66 mg (at least 90% of the labeled 10 mg)
- Passed: Identity — Confirmed
- 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)
PT-141 10mg · lot 20261064
PassedFreedom Diagnostics · tested May 30, 2026 · certificate FUSI2605280284 · client named Fusion Testing Lab · on the PT-141 listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — PT-141 (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.95% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 13.29 mg (at least 90% of the labeled 10 mg)
- Passed: Identity — Confirmed
- 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)
Semax 10mg · lot 20261016
PassedFreedom Diagnostics · tested May 11, 2026 · certificate FUSI2605080050 · client named Fusion Testing Lab · on the Semax listing only, not on Fusion’s /coa/ page
- Passed: Identity (LC-MS) — Semax (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.49% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 13.48 mg (at least 90% of the labeled 10 mg)
- Passed: Identity — Confirmed
- Passed: Appearance — White Lyophilized Powder (the expected white lyophilized form)
Thymalin 10mg · lot 20261058
Identity (LC-MS): identity reads Thymulin; the label reads Thymalin 10mgFreedom Diagnostics · tested May 24, 2026 · certificate Fusi2605220054 · client named Fusion Testing Lab · its identity line reads Thymulin; Fusion shows it on its /coa/ page and on its Thymalin and Thymogen listings
- identity reads Thymulin; the label reads Thymalin 10mg: Identity (LC-MS) — Thymulin
- Passed: Purity (HPLC-UV) — 99.88% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net Content — 9.62 mg (at least 90% of the labeled 10 mg)
- Passed: Identity — Confirmed
- 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)
Not in Vanguard’s public search
Not in public searchTesamorelin 5 mg, lot FP25-0026 (Vanguard Laboratory V250407-12 002); GHRP-6 5 mg, lot FP25-0098 (Vanguard Laboratory V250710-16 008); Mazdutide 10 mg, lot FP25-0035 (Vanguard Laboratory V250515-16 002); Cagrilintide 10 mg, lot Red Cap (Vanguard Laboratory V250606-25 001); KLOW 80 mg, lot FP25-0113 (Vanguard Laboratory V250725-10 005); BPC-157/TB-500 10 mg/10 mg, lot Yellow Cap (Vanguard Laboratory V250606-25 007): not listed in Vanguard’s public search under the brand “Fusion Peptides”, “Fusion Peptide” or “Fusion” (checked October 21, 2026). Vanguard lets clients keep reports link-only or private, so absence from its public search says nothing either way about a report.
Two certificates were read in full on September 14, 2026: a Cagrilintide 10 mg report from Vanguard giving 99.00% ± 0.18% chromatographic purity by HPLC-UV/VIS, and a TB-500 report from MZ Biolabs giving 99.80% by HPLC-UV-MS on lot ULP-34005. Each figure is the certificate's own reported result, not a Prof. Peptide measurement. The Vanguard Cagrilintide document gives “Red Cap” in its “Lot Number” field, a cap color rather than a lot (the BPC-157 / TB-500 certificate reads “Yellow Cap”), so those certificates cannot be tied to a batch by their own identifier.
On October 14, 2026 Prof. Peptide looked up three certificates drawn at random from the library — Tesamorelin (lot FP25-0026), GHRP-6 5mg (lot FP25-0098) and Mazdutide 10mg (lot FP25-0035), each a Vanguard report addressed to Fusion Peptides — in Vanguard Laboratory's public search, and none is listed there under the vendor's name (re-checked October 21, 2026). Vanguard lets clients keep reports link-only or private: its own site lists four sharing choices for a report, “Public search”, “Link only”, “Password protected” and “Unpublished”.
Separately, Fusion's Terms publish a Product Quality Guarantee: the vendor states that a buyer may have a product tested at any HPLC-licensed facility and that, if the results are negative, it will refund the cost of the test plus the order total and shipping. All products are sold for laboratory research use only.
Payment and shipping
Prices are in US dollars and may change without notice, and orders are paid in full before processing and shipment. Fusion accepts major credit and debit cards plus select alternatives such as Zelle, Cash App and cryptocurrency, “or other processors as offered at checkout”, each subject to its own provider's rules, and card statements show the descriptor “Fusion Research Supplies USA”.
All purchases are final and returns are not accepted. A shipment arriving damaged may be replaced or refunded at Fusion's discretion, and Fusion is not liable for delays or delivery failures outside its control, including carrier issues, customs holds and lost packages. An order can be canceled for a refund before it ships, and damage in transit is reported to info@fusionpeptide.com within 3 business days of delivery, with the order number and photos of the package and product.
Customer service
Fusion lists an email address, a telephone number and a contact form: info@fusionpeptide.com, 1 800-385-6689, and the form on its Contact Us page. Its hours are Monday to Friday 10AM to 6PM MST and Saturday noon to 4PM MST, closed Sunday, and outside those hours the best route is the support email. Fusion Peptide is based in Glendale, Arizona, and is operated by Fusion LLC.
Ratings & reviews
Prof. Peptide checked Trustpilot and Finnrick on October 20, 2026. There were no results on either site as of that date.
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