Contact Us
Have questions about our research peptides, ordering process, or need a custom synthesis quote? Our team is here to help.
Business Hours
Mon–Fri: 9AM–5PM EST
Closed weekends and federal holidays
Location
United States
Domestic shipping only at this time
Research Inquiries Only
We only accept orders and inquiries from qualified researchers for legitimate scientific research purposes. All products are for research use only.
Quick Resources
- → View Product Catalog
- → Shipping Information
- → Return Policy
- → Research Use Policy
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Common Questions
Frequently Asked Questions
Are your peptides safe for human use?
No. All products sold by RxPeptides.co are strictly for in vitro laboratory research and scientific investigation only. They are NOT intended for human consumption, veterinary use, or any other purpose.
What purity level do your peptides have?
All our peptides are purified to greater than 99% purity via HPLC. A Certificate of Analysis (COA) verifying purity and molecular weight is included with every order.
How are your peptides shipped?
Orders are shipped within 1-2 business days. We use appropriate cold-chain logistics for temperature-sensitive peptides. Free shipping is available on orders over $200 within the USA.
Do you offer bulk or custom orders?
Yes, we can accommodate bulk orders and custom synthesis requests. Please contact us via email with your specific requirements and we will provide a custom quote.
What payment methods do you accept?
We accept all major credit cards (Visa, Mastercard, American Express, Discover) through our secure Stripe payment processing system.
What is your return policy?
We stand behind the quality of our products. If you receive a product that does not meet our stated specifications, please contact us within 30 days of receipt for a resolution.