Synthesis Peptides Discount Code: PROFPEPTIDE — Save 10%
Use coupon code PROFPEPTIDE at Synthesis Peptides to save 10% on your order. Prof. Peptide confirmed this rate on October 13, 2026.
Key facts
- Price comparison
- 7 of 31 comparable products cost less than the median for the same product and size across every vendor PP tracks — before the code
- Catalog
- 46 products at the 2026-10-16 pull · 31 in Prof. Peptide’s price comparison, 30 of those in stock (a further 1 priced here with too few other vendors to compare against) · Vials, plus a tablet line
- Third-party testing
- Freedom Diagnostics
- Certificates of analysis
- Certificate published for every batch, surfaced on the vendor’s own site with the peptide content stated on each; the vendor states no count
- Prof. Peptide’s discount
- 10% off with code PROFPEPTIDE
Compare Synthesis Peptides’ prices: 5-Amino-1MQ, Tirzepatide, Melanotan II, Semax, Selank, GHK-Cu, BPC-157, DSIP
The Synthesis Peptides coupon code, discount code and promo code are all the same string — PROFPEPTIDE — whether you searched for a synthesispeptides coupon or a Synthesis Peptides promo code. Prof. Peptide maintains it directly with the vendor.
Synthesis Peptides is a US-based research-peptide supplier headquartered in Las Vegas, Nevada, with a catalog spanning metabolic, recovery, performance, growth-hormone, cognitive, skin-health, gut-health, sleep, longevity, and sexual-health research. Popular compounds by category:
- Metabolic & GLP-1
- Semaglutide, Tirzepatide, Retatrutide, Cagrilintide, MOTS-C, AOD-9604, 5-Amino-1MQ
- Performance & Energy
- IGF-1 LR3
- Growth Hormone
- CJC-1295, Ipamorelin, Sermorelin, Tesamorelin
- Skin Health & Anti-Aging
- GHK-Cu, GLOW 70, KLOW 80, Melanotan II
- Gut Health & Immunity
- Thymosin Alpha-1, KPV
- Sleep & Recovery
- DSIP
- Sexual Health
- PT-141
Synthesis Peptides runs per-batch third-party HPLC testing on its research compounds, verifying a minimum of ≥98% purity before release. The certificates are issued by Freedom Diagnostics, and a certificate resolves on the laboratory’s own site rather than only on Synthesis’s — so the check runs against the lab rather than against the vendor. Synthesis Peptides accepts Visa, Mastercard, American Express, Discover and PayPal per its FAQ.
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 15 August and 23 August 2026.
Analytical Results
No specifications printedEvery component of the Analytical Results, as the certificates name it.
- No specification printed: Identity (LC-MS) — RETATRUTIDE 10mg: GLP RT · Selank 30mg: Selank · Cartalax 20mg: Cartalax
- No specification printed: Purity (HPLC-UV) — RETATRUTIDE 10mg: 99.83% · Selank 30mg: 99.68% · Cartalax 20mg: 99.75% — against 98%, Prof. Peptide’s default
- No specification printed: Net Content — RETATRUTIDE 10mg: 12.51 mg · Selank 30mg: 32.20 mg · Cartalax 20mg: 21.05 mg
- No specification printed: Appearance — White Lyophilized Powder
Additional tests
PassedReported on the certificates outside that panel.
- Passed: Elemental Impurities (ICP-MS) — Pass — Arsenic, Cadmium, Lead, and Mercury below reporting/specification limits
- Passed: Endotoxin Replicate 1 — Pass (limit Assay Sensitivity: ≤0.05 EU/mL)
- Passed: Endotoxin Replicate 2 — Pass (limit Assay Sensitivity: ≤0.05 EU/mL)
- No specification printed: Microbial Analysis (PCR) — No Detectable Microbial DNA
- No specification printed: Fentanyl — No Fentanyl Detected
Synthesis Peptides catalog & prices
Struck-through prices are Synthesis Peptides’ list price; the bold figure is your price once you apply code PROFPEPTIDE at checkout. Prices current as of October 16, 2026.
Synthesis Peptides affiliate program
Synthesis Peptides runs an affiliate program. Its terms below are from the program’s published terms, read by Prof. Peptide October 15, 2026.
- Commission
- 10%; the page states no basis. Creating a store account enrolls the customer as an affiliate, with no application
Apply to the Synthesis Peptides affiliate program on the vendor's own sign-up page.
Prof. Peptide checked Trustpilot and Finnrick on 30 September 2026.
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Affiliate disclosure: Prof. Peptide is independently operated and may earn affiliate commissions when you use our discount codes or buy through our links, at no additional cost to you. Affiliate relationships never determine vendor inclusion, ranking, verification, or our editorial conclusions.