Peptix USA Coupon Code: PROFPEPTIDE — Save 10%
The current Peptix USA (peptixusa.com) discount code is PROFPEPTIDE, for 10% off your first order. Prof. Peptide verifies this code directly with the vendor and updates it when it changes.
Key facts
- Catalog
- Lyophilized research peptides and a blend in vials, with NAD+ and bacteriostatic water
- Third-party testing
- ILS Laboratories & Freedom Diagnostics
- Certificates of analysis
- A lab report library with certificates from ILS Laboratories and Freedom Diagnostics, by product and lot
- Prof. Peptide’s discount
- 10% off with code PROFPEPTIDE — first order
- Code checked
- Prof. Peptide confirmed this rate in its partner dashboard.
Overview
Peptix USA, also searched as Peptix, sells lyophilized research peptides and a blend in vials, with NAD+ and bacteriostatic water, for laboratory research use only. Larger orders get bundle pricing, and the 10-vial kit includes two free bottles of bacteriostatic water.
Peptix USA catalog & prices
The products are grouped below by Prof. Peptide's research-library categories, at Peptix USA's single-vial prices.
- Metabolic & GLP-1
- Reta (GLP-3), Peptix USA's retatrutide, 10 mg, $59; Tirz (GLP-2), its tirzepatide, 20 mg, $52
- Recovery & Tissue Repair
- BPC-157 10 mg, $40
- Growth Hormone
- Tesamorelin 10 mg, $62
- Skin Health & Anti-Aging
- GLOW (GHK-Cu, BPC-157 and TB-500) 70 mg, $85
- Longevity
- NAD+ 1,000 mg, $58
- Supplies
- Bacteriostatic water 10 mL, $15
Testing: Labs & Certificates of Analysis
Peptix USA's lab report library lists each certificate by product, lot and test date. ILS Laboratories tests its retatrutide, tirzepatide and tesamorelin with a full panel: HPLC purity and identity, net content, sterility, endotoxin, heavy metals and a fentanyl screen. Freedom Diagnostics tests its BPC-157 and GLOW for identity, purity and content. Peptix USA says every batch is tested to 99% purity or better.
Prof. Peptide looked up three of the Freedom Diagnostics certificates at Freedom Diagnostics' own records, GLOW 70 mg, BPC-157 10 mg and retatrutide 10 mg, and each matched Peptix USA's copy. Those three certificates' results are below.
Prof. Peptide Verification
Verified · November 13, 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 April 23 and May 23, 2026.
BPC-157 10mg · lot D87432
PassedFreedom Diagnostics · tested April 23, 2026 · certificate Pept2604220094
- Passed: Identity — BPC-157 (names the labeled compound)
- Passed: Purity (HPLC) — 99.66% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net content — 11.43 mg (at least 90% of the labeled 10 mg)
GLOW 70mg · lot E32892
PassedFreedom Diagnostics · tested May 23, 2026 · certificate Pept2605210264
- Passed: Identity (LC-MS) — GHK-Cu / BPC-157 / Thymosin Beta-4 confirmed (names the labeled compound)
- Passed: Purity (HPLC-UV) — 99.46% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Not graded, the line does not quantify every component of the blend: Net content — GHK-Cu 59.21 mg / BPC-157 10.46 mg / TB-4 9.76 mg (79.43 mg)
Retatrutide 10mg · lot D93685
PassedFreedom Diagnostics · tested May 23, 2026 · certificate Pept2605210262
- Not graded, the laboratory prints “GLP RT”, not a compound name: Identity (LC-MS) — GLP RT
- Passed: Purity (HPLC) — 99.76% (against ≥98%, Prof. Peptide’s standard; the certificate prints no specification)
- Passed: Net content — 12.20 mg (at least 90% of the labeled 10 mg)
All products are sold for laboratory research use only.
Who tests Peptix USA’s peptides?
Freedom Diagnostics
- Location
- 133 Holiday Ct Suite 106, Franklin, Tennessee 37067, USA (labelled “New Location” on the home page).
- What its certificates report
- Tests reported on the certificates Prof. Peptide has matched at Freedom Diagnostics, across vendors: Purity (HPLC) · Net peptide content · Identity · Appearance · Fentanyl screen · Heavy metals (ICP-MS) · Sterility (PCR) · Endotoxin (USP <85>) · Endotoxin (method not printed)
- Accreditation
- Claimed by the lab: No accreditation body is named. The COA Look Up page states “Compliant with ISO 9001 Quality Management Principles” and “Good Laboratory Practice (GLP) Quality Standard Principles”; the home page states no accreditation.Accreditation body directories: A2LA: searched, no record found.
- How certificates are checked at the lab
- COA Look Up on the lab’s site, searched by Search Code (the first four characters of the client’s company name plus the accession number, printed top right on the certificate), accession number or company name; results open as PDFs. A client can choose not to post results on the lab’s site.
- What Prof. Peptide checked for Peptix USA
- Prof. Peptide matched 3 certificates at Freedom Diagnostics’ own lookup; the lab’s records name Peptix USA as the client.
ILS Laboratories
- Location
- 8222 Vickers St STE 106, San Diego, California 92111, USA.
- What its certificates report
- Tests reported on the certificates Prof. Peptide has matched at ILS Laboratories, across vendors: Purity (HPLC) · Net peptide content · Identity · Appearance · Fentanyl screen · HPLC conformity · Heavy metals (ICP-MS) · Sterility (PCR) · Endotoxin (USP <85>) · Endotoxin (method not printed)
- Accreditation
- Claimed by the lab: A site-wide badge reads “ISO 17025 Accredited Laboratory”, and the services page says “ISO/IEC 17025 accredited for activities within our accredited scope”. No accreditation body or certificate number is named on the pages read.Accreditation body directories: A2LA: searched, no record found.
- How certificates are checked at the lab
- Each certificate carries a QR code and a 7–8 character access code, entered at ils-lab.com/verify or reached by scanning the QR; no login. Released results cannot be altered.
Payment and shipping
Peptix USA ships within the United States only, to all 50 states, in plain packaging with tracking. Orders paid before 2:00 PM Eastern on a weekday ship the same day, and later orders ship the next business day; delivery takes 3 to 5 business days. Shipping is free over $150, bacteriostatic water is free over $100, and shipment protection is included free.
Peptix USA accepts returns of unopened, factory-sealed products within 7 days of delivery, with a free return label. Damaged, incorrect, lost or stolen orders reported within 7 days are replaced at no cost.
Customer service
Peptix USA takes questions by text at +1 954 841-2264, Monday to Friday from 9 AM to 5 PM Eastern, and through support tickets on its site.
Research-use terms
- On its site
- Peptix USA sells all its products strictly for laboratory and in vitro research, not for human or veterinary use, consumption, injection or any diagnostic or therapeutic use, and marks every page for research use only.
- When buying
- By purchasing, a buyer self-certifies being at least 21 and a qualified researcher, licensed professional or representative of a research institution, responsible for the proper handling, storage and lawful use of the materials.
- Terms page
- peptixusa.com/disclaimer
Sources: Peptix USA's own pages, peptixusa.com site footer and /disclaimer, read November 13, 2026.
Ratings & reviews
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Affiliate disclosure: Prof. Peptide earns a commission on purchases and sign-ups made through its links and codes, at no extra cost to the buyer. Commissions never decide which vendors are listed, how they are ranked or verified, or what Prof. Peptide concludes.
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