cGMP-compliant, Temecula CA • Same Day Shipping • Now Shipping to Canada, EU, UK & Australia As Well!Premium Research Peptides You Can Trust
PSPeptides delivers the highest quality US-made research peptides, with verified 99%+ purity. Synthesized by solid-phase peptide synthesis in a cGMP-compliant facility in Temecula, California. No overseas sourcing at any stage. Every batch is rigorously tested by independent laboratories. Orders ship same or next business day.
PSPeptides In The Wild
Peptide Bundles
Curated multi-peptide stacks at a bundled price everything a protocol needs in one click.
“To Be Reborn” Bundle
“Turn Back Time” Bundle
“Repair & Renew” Bundle
“Cut & Glow” Bundle
“Gut Revival” Bundle
“Shred Express” Bundle
Best-Selling Peptides
Explore our most popular research peptides, each verified for purity and potency.
Retatrutide (1 Vial)
Tirzepatide (1 Vial)
MOTS-C (1 Vial)
KLOW (1 Vial)
Wolverine Blend BPC-157 + TB-500 (1 Vial)
SS-31 (1 Vial)
GHK-CU (1 Vial)
Epitalon (1 Vial)
Selank+Semax Nasal Spray
DSIP Nasal Spray
Adamax Nasal Spray
Quality You Can Count On
We go above and beyond to ensure every product meets the highest standards of purity and quality.
Third-Party Tested
Every batch undergoes rigorous independent laboratory testing with HPLC and Mass Spectrometry verification.
99%+ Purity
Our strict quality control process ensures every peptide meets a minimum 99% purity threshold before shipping.
Fast Shipping
Orders placed before 2PM EST ship same day. Discrete packaging with full tracking on every order.
Expert Support
Our knowledgeable team is available 7 days a week to answer your questions and help with orders.
Frequently Asked Questions
Yes, every batch is tested and the latest testing results batches that are being shipped are ALWAYS posted in our Test Reports/Certificates page!
Yes. All PSPeptides research peptides are manufactured in US facilities following current Good Manufacturing Practice (cGMP) guidelines, and every batch is independently third-party tested for purity, heavy metals, endotoxins, and sterility. You can review the reports on our Certifications page.
Once your order has been processed and shipped, you'll receive an email confirmation with your tracking number. Orders placed before 12 noon EST typically ship the same business day (later orders ship the next business day). You can use the tracking link in your email to follow your package through UPS or USPS as it travels to you. You will receive notifications via email when your package has been dropped off at the carrier, is in transit, is out for delivery, and when it is delivered. My Account | Order Tracking
Yes, we ship internationally! We ship across the US and US territories, and now also to Canada, the EU, the UK, and Australia.
Our support agents are available from 9AM-10PM EST daily via email! Check out our Contact Us page for support details.
In-Depth Research Guides
Peer-reviewed research, dosing protocols, and industry comparisons to help you make informed decisions.
Retatrutide Dosage: Week-by-Week Chart 2026
Week-by-week titration schedule, mg conversions, and reconstitution math for retatrutide research.
Read Guide
GHK-Cu Dosage Guide: mg/Week, Chart & Protocol
Injectable and topical GHK-Cu dosing ranges, weekly schedules, and reconstitution guidance.
Read Guide
Wolverine Stack Dosage: BPC-157 + TB-500
Combined BPC-157 and TB-500 dosing — per-compound ranges, frequency, and blend vs separate vials.
Read Guide
Best Peptide Companies 2026: How to Compare Vendors
How to compare peptide vendors on purity, third-party testing, shipping speed, and payment options.
Read Guide
CJC-1295 Ipamorelin Dosage: DAC vs No-DAC
Dosing protocols for the CJC-1295 and Ipamorelin pairing, including DAC vs no-DAC frequency.
Read Guide
GLOW vs KLOW Peptide Blend: Which Is Better?
Reference chart with storage temperature and reconstituted stability for 20+ research peptides.
Read GuideReady to Get Started?
Browse our complete catalog of premium research peptides. Free shipping on orders over $200.
Coach Brandon Johnson — Credentials
NU Life Provider Peptide Training Course
NASM Certified Nutrition Coach
NASM Certified Personal Trainer (CPT)
ISSA Specialist in Strength & Conditioning
ISSA Certified Glute Specialist
TRX Suspension Training Qualification
Living.Fit Kettlebell Level 1 Graduate