US Made & Shipped • Same Day ShippingPremium Research Peptides You Can Trust
PSPeptides delivers the highest quality US-made research peptides with verified 99%+ purity. Every batch is rigorously tested by independent laboratories. Orders ship same or next business day.
PSPeptides In The Wild
Best-Selling Peptides
Explore our most popular research peptides, each verified for purity and potency.
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.
GHK-Cu Peptide Topical Serum
A skin-applied peptide serum designed to boost collagen production and support skin rejuvenation — now available from PSPeptides.
- Promotes collagen & elastin production
- Supports skin firmness & elasticity
- No Needles, No Injections — Hassle Free Dropper To Apply Directly Onto Skin
- Others → 0.1% GHK | PSPeptides → 1% GHK
- Clinically Proven That 1% Formulas Are 2.2x More Effective
Trusted by Hundreds Across the US
See what our customers have to say about their experience with PSPeptides.
"Got it within 2 days of it being shipped and couldn't be happier with my experience."
"I used the copper peptide serum for a few weeks now and my god I couldn't be happier and the results are night and day. Definitely a must have for anyone into skincare."
"Only peptide company I know of that actually ships the same day and every order ive received has always been neatly packed and the peptides are top notch."
"Been ordering with PS for about a year now and never had a single problem across 10 orders and delivery was always lightning fast."
"A+ for GHK. I started using it to combat my collagen loss at my age and i get compliments on the progress it made so far. Will ABSOLUTELY be using for the foreseeable future."
"The color is absolutely mesmerizing and delivers for my skincare it feels light and absorbs quickly and leaves a nice shine on my skin after using 5/5"
Ask Coach Brandon Johnson About Your Peptide Questions
Have questions about peptide research, reconstitution, dosing protocols, or which peptides are right for your goals? Book a free virtual consultation with Coach Brandon Johnson and get expert answers — no obligation.
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!
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
We currently ship across the US and US territories with an upcoming expansion to Canada in 2026.
Our support agents are available from 9AM-10PM EST daily via call, text and 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 Complete Guide: Mechanism, Dosage, Research
The triple GLP-1/GIP/glucagon agonist making headlines — trial data, dosing, and comparison to tirzepatide.
Read Guide
GHK-Cu Complete Guide: Mechanism, Research, Protocols
Copper peptide research on wound healing, skin regeneration, hair studies, and peer-reviewed data.
Read Guide
BPC-157 Research Guide: Tissue Healing & Protocols
The most-studied tissue-repair peptide — mechanism, published research, and dosing protocols.
Read Guide
Best Peptide Companies 2026: 12 Vendors Compared
12 peptide vendors compared on purity, third-party testing, shipping speed, and payment options.
Read Guide
Peptide Sciences Alternatives: What to Use After Shutdown
Post-shutdown comparison of remaining US-based suppliers on purity, pricing, and transparency.
Read Guide
Peptide Half-Life Chart: 20+ Peptides with Data
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 $150.
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