Frequently Asked Questions

Everything you need to know about our laboratory standards, ordering processes, and compliance protocols.

Products & Quality

Are your peptides research grade?
Yes. Every peptide we ship is 99%+ purity research grade, independently verified by accredited third-party laboratories. Certificates of Analysis are available on every product page and in our COA Library before purchase.
Every batch undergoes HPLC-Mass Spectrometry purity analysis, MALDI identity confirmation, endotoxin screening, and heavy metals testing (ICP-MS). Results are published in the COA for each batch.
We use accredited, independent third-party laboratories. The specific lab name and accreditation details are listed on each product’s Certificate of Analysis.
Yes. Our peptides are synthesized and packaged in GMP-compliant facilities in the United States. We maintain a fully domestic supply chain.
Depending on the product, peptides are available as lyophilized (freeze-dried) powder in sealed glass vials, or as liquid in amber dropper bottles. The format is noted on each product page. Bacteriostatic water for reconstitution is available as an add-on.

Ordering & Payment

What payment methods do you accept?

We accept all major credit and debit cards, ACH bank transfer, Zelle,Venmo, and Cash App. All card transactions are secured with 256-bit SSL encryption.

Yes. All transactions are encrypted with 256-bit SSL. We do not store credit card information on our servers.

Yes. All transactions are encrypted with 256-bit SSL. We do not store credit card information on our servers.

Yes. We offer bundle savings on our Stacks page, and our Partner Program offers ongoing discounts for qualifying researchers and affiliates. Sign up for our email list for new customer offers.

Shipping

How fast do you ship?

Orders placed before 2PM PST ship same day. Orders after 2PM or on weekends ship the next business day. Most domestic orders arrive within 2–3 business days via tracked delivery.

We currently ship within the United States only. International shipping is planned for a future date. Subscribe to our email list for updates

All orders ship in plain, unmarked outer packaging with a generic return address. Your billing statement will show a non-descriptive descriptor. No product names or branding appear on the outside of the package.

Yes. Free standard shipping on all orders over $300. Expedited options are available at checkout for an additional fee.

A tracking number is emailed to you as soon as your order ships. You can also track from your account dashboard at calipeppers.com/account.

Returns & Replacements

What is your return policy?

Due to the nature of research-grade materials, we do not accept general returns. We will replace or refund products that arrive damaged, are shipped in error, or fail independent purity verification. Contact us within 72 hours of delivery

Take a photo of the damaged packaging and vial, then contact us within 72 hours of delivery. We’ll ship a replacement at no charge.

Contact us within 72 hours of delivery with your order number and a photo of what you received. We’ll correct the shipment immediately

Research Use & Compliance

Who are these products intended for?
Our products are intended strictly for qualified researchers, laboratory professionals, and scientific institutions for in-vitro and laboratory research purposes only. They are not for human or animal consumption.
No. These products have not been evaluated or approved by the FDA. They are sold exclusively as research chemicals for laboratory use only and are not intended to diagnose, treat, cure, or prevent any disease.

We are not able to provide medical advice, dosing recommendations, or usage protocols. Our team can answer questions about reconstitution, storage, and product specifications. For research protocol questions, please consult published literature.

Account & Partner Program

How do I create an account?
Click Account in the top navigation and select Create Account. An account lets you track orders, access your order history, and receive exclusive member deals.

Yes. Our Partner Program offers commission on every referred sale with Net-30 payouts and real-time tracking. Visit calipeppers.com/affiliates to learn more and apply.