IRON Peptides Discount Code: PROFPEPTIDE — Save 10%
Use coupon code PROFPEPTIDE at IRON Peptides to save 10% on your order. Prof. Peptide confirmed this rate on October 13, 2026.
Key facts
- Price comparison
- 1 of 45 comparable products cost less than the median for the same product and size across every vendor PP tracks — before the code
- Catalog
- 105 products at the 2026-10-16 pull · 45 in Prof. Peptide’s price comparison, 44 of those in stock (a further 2 priced here with too few other vendors to compare against)
- Third-party testing
- Freedom Diagnostics
- Certificates of analysis
- Public library, 86 certificates, each carrying a search code that resolves on the testing lab’s site
- Prof. Peptide’s discount
- 10% off with code PROFPEPTIDE
Compare IRON Peptides’ prices: SLU-PP-332, AOD-9604, IGF-1 LR3, Tirzepatide, VIP, Semaglutide, Livagen, Prostamax
IRON Peptides (ironpeptides.is) is a US-based research-compound supplier. The thing worth knowing first is how its certificates check out: each one carries a search code, and that code resolves on the testing laboratory’s own website rather than only on IRON’s. A reader can confirm a certificate at the lab instead of taking the vendor’s word for it. Compounds by research area:
- Metabolic & GLP-1
- Retatrutide (IR-3RT), Tirzepatide (IR-2TZ), Semaglutide (IR-1SG), Survodutide, Cagrilintide, Mazdutide, AOD-9604, MOTS-c, 5-Amino-1MQ
- Recovery & Tissue Repair
- BPC-157, TB-500, BPC-157 + TB-500 blend
- Performance & Energy
- IGF-1 LR3
- Growth Hormone
- CJC-1295, Ipamorelin, CJC-1295 + Ipamorelin, Tesamorelin
- Skin Health & Anti-Aging
- GHK-Cu, Melanotan I, Melanotan II, GLOW, KLOW
- Gut Health & Immunity
- KPV, Thymosin Alpha-1, VIP
- Sleep & Recovery
- DSIP
- Longevity
- NAD+, Glutathione, Epitalon, SS-31
- Sexual Health
- PT-141, Oxytocin, Kisspeptin-10
- Bioregulators
- Pancragen, Prostamax, Livagen, Testagen, Thymalin
IRON sells retatrutide as IR-3RT (its description names the compound), tirzepatide as IR-2TZ (the product code reads IRONP-TRZ-US-10MG) and semaglutide as IR-1SG (its product address names the compound).
IRON’s compounds are tested by Freedom Diagnostics, and it publishes a library of 86 certificates. Each certificate covers identity, purity, net peptide content, and appearance, with the chemical analysis performed by HPLC with UV detection coupled to mass spectrometry. Net peptide content is measured rather than assumed — the certificate we reviewed reports 11.66 mg in a 10 mg vial.
The basis for that is worth setting out, because it is what separates a certificate a reader can check from one they cannot. Every IRON certificate prints a search code. We took one — IRON2510230085, a Cagrilintide lot — and resolved it directly on Freedom Diagnostics’ own domain, which returned the laboratory’s own copy of the report. Its contents match the file IRON publishes exactly: same lot, same measured content, same 99.834% purity result. The check runs against the laboratory rather than against the vendor, and it is a check any reader can repeat.
Prof. Peptide Verification
Verified · 11 October 2026
We identified the lab, matched the certificates on its own website, and read every test result.
Lab identified
PassedFreedom Diagnostics
Certificates verified
Passed3 of 3 matched on Freedom Diagnostics’ own website, and the same lookup rejected a made-up code.
All three certificates were tested on 26 October 2025 and 9 September 2026.
Laboratory panel
No specifications printedThe certificates do not agree on one panel name.
- No specification printed: GHK-Cu/KPV/BPC-157/Thymosin Beta-4 — 99.5%Reported on KLOW 80MG (lot IR-2510-008) only.
- No specification printed: Identity — KLOW 80MG: GHK-Cu/KPV/BPC-157/Thymosin Beta-4 · GHK-CU 50MG: GHK-CUReported on KLOW 80MG (lot IR-2510-008), GHK-CU 50MG (lot IR-2510-026) only.
- No specification printed: Net Peptide Content — KLOW 80MG: GHK-Cu- 54.52 mg; KPV- 10.72; BPC-157- 9.31 mg; Thymosin Beta-4- 10.39 mg · GHK-CU 50MG: 55.32 mgReported on KLOW 80MG (lot IR-2510-008), GHK-CU 50MG (lot IR-2510-026) only.
- No specification printed: Appearance — KLOW 80MG: Blue Lyophilized Powder · GHK-CU 50MG: Blue Lyophilized Powder · NAD+ 1000mg: White Lyophilized Powder
- No specification printed: GHK-CU — 99.791%Reported on GHK-CU 50MG (lot IR-2510-026) only.
- No specification printed: Identity (LC-MS) — NAD+Reported on NAD+ 1000mg (lot Black Cap) only.
- No specification printed: Purity (HPLC-UV) — 99.72% — against 98%, Prof. Peptide’s defaultReported on NAD+ 1000mg (lot Black Cap) only.
- No specification printed: Net Content — 1065.31 mgReported on NAD+ 1000mg (lot Black Cap) only.
Additional tests
PassedReported on the certificates outside that panel.
- Passed: Endotoxin Replicate 1 — Pass (limit Assay Sensitivity: ≤0.05 EU/mL)Reported on NAD+ 1000mg (lot Black Cap) only.
- Passed: Endotoxin Replicate 2 — Pass (limit Assay Sensitivity: ≤0.05 EU/mL)Reported on NAD+ 1000mg (lot Black Cap) only.
Two points of context. Freedom Diagnostics does not print a laboratory accreditation on these certificates, so none is claimed here — the strength of the record is the independent, externally verifiable check on the lab’s own domain. And the certificates are published as a library rather than one per batch, which is why this page describes them that way. IRON is US-based. All products are sold for laboratory and research use only. IRON Peptides accepts credit card, Apple Pay, Google Pay and pay by bank at checkout. Paying by bank takes a further 5% off at checkout.
IRON Peptides catalog & prices
Struck-through prices are IRON Peptides’ list price; the bold figure is your price once you apply code PROFPEPTIDE at checkout. Prices current as of October 16, 2026.
Prof. Peptide checked Trustpilot and Finnrick on 30 September 2026.
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Frequently Asked Questions
What peptides does IRON Peptides carry?
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What do IRON Peptides' IR-1SG, IR-2TZ and IR-3RT codes mean?
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