Third-Party Tested Third-party purity tested · COAs available on request
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Return & Refund Policy

This policy explains what happens after your order is placed. It forms part of our Terms of Sale.

All sales are final

All sales are final. We do not accept returns or exchanges and do not issue refunds, except where required by applicable law.

This includes change of mind, ordering the wrong item or option, and unused or unopened products. Because these are research materials whose storage and handling conditions cannot be verified once they leave our control, we cannot resell returned inventory.

Please do not ship any product back to us without our written authorization. Unauthorized shipments cannot be accepted or credited.

Incorrect item or damage in transit

If you received the wrong item, or an item that was damaged in transit, contact us within 30 days of delivery so we can look into it. Reports outside this window may still be reviewed but cannot be guaranteed a remedy.

Email Support@centralcoastpeptides.com or call (805) 259-2514 and include:

Keep the item and all packaging until we respond — photos and packaging are often needed to resolve a carrier claim.

We will review your report and provide any remedy required by applicable law. We will tell you the outcome directly; please do not return anything unless we authorize it first.

Order cancelled by 559 Peptide Supply

If we cancel a paid order or part of an order — for example because of a pricing or availability error, as described in our Terms of Sale — we will return the amount you paid for the cancelled portion using the original payment method where practicable.

Your legal rights

Nothing in this policy limits or waives any right you have that cannot be waived under applicable law.

For laboratory research use only — not for human consumption. This page is provided for customer information and is not legal advice.

FAQ
How long does shipping to Fresno take?

In-stock weekday orders placed before 3 PM Pacific ship by UPS the same day from the Central Coast. Transit to Fresno, Clovis, Visalia and the rest of the Valley takes up to 3 business days.

Do you have a pickup location in the 559?

No — every 559 Peptide Supply order ships by UPS to your address, with the UPS tracking number sent to you by email once it ships.

Is shipping free?

Yes, on orders over $200. For smaller orders the shipping cost is shown at checkout before you pay.

How do you test purity?

Every lot is sent to an independent third-party laboratory for HPLC purity and mass-spectrometry identity testing. Only lots that meet specification are sold.

Can I return an order?

Sales are final, but if an item arrives damaged or you receive the wrong product, email us within 30 days of delivery with photos and your order number and we will look into it.

Who is allowed to purchase?

Researchers 21 and older buying for legitimate laboratory research. These compounds are not drugs, food or supplements and are not for human or animal consumption.

Contact

Located on California’s Central Coast, in San Luis Obispo County.

Research use only – legal notice

For Research Use Only. Not for use in diagnostic procedures.

All products sold by 559 Peptide Supply are supplied strictly for in-vitro laboratory research and further-manufacturing use only. They are not drugs, medical devices, cosmetics, food, dietary supplements, or household chemicals, and have not been evaluated or approved by the U.S. Food and Drug Administration (FDA).

Products are not intended for, and shall not be used for, human or animal consumption, ingestion, injection, inhalation, topical application, or any therapeutic, diagnostic, prophylactic, cosmetic, or clinical purpose. They are not intended to diagnose, treat, cure, or prevent any disease or condition.

By purchasing, the buyer certifies that they are a qualified researcher or licensed professional acquiring these materials solely for legitimate scientific research or analytical purposes, that they are at least 21 years of age and of legal age to contract in their jurisdiction (including California), and that they will handle, store, use, and dispose of the materials in accordance with all applicable federal, state, and local laws and with standard laboratory safety practices.

To the fullest extent permitted by law, the buyer assumes all risk and responsibility associated with the receipt, possession, handling, and use of these products, and releases, indemnifies, and holds harmless 559 Peptide Supply, its owners, officers, employees, and affiliates from any and all claims, damages, liabilities, or losses arising out of misuse, off-label use, or use in violation of these terms. Products are sold “AS IS” with no warranties, express or implied.

Questions about compliance or documentation? Contact us at Support@centralcoastpeptides.com or (805) 259-2514.