Peptides are short chains of amino acids that act as signaling molecules in biological processes. At GoldenStateBio, all peptides are intended strictly for laboratory research and development use only. They are not approved for human or veterinary use and must only be handled by qualified professionals in controlled environments.

Yes. All of our peptides undergo rigorous third-party testing using HPLC (High Performance Liquid Chromatography) and Mass Spectrometry to confirm purity ≥ 99%, composition, and molecular structure. Certificate of Analysis (COA) is available upon request for qualified buyers.

No. Our products are sold strictly for in-vitro laboratory research and analytical purposes. They are not approved for ingestion, injection, or any form of clinical application. GoldenStateBio accepts no liability for misuse or off-label application of its products.

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We recommend storing lyophilized (freeze-dried) peptides in a cool, dry place—ideally at -20°C or below. Once reconstituted, peptides should be stored as advised in their respective handling instructions and used within a limited time frame to preserve stability and efficacy.

Yes, we offer international shipping to most countries, provided local laws permit the import of research peptides. It’s the customer’s responsibility to ensure compliance with local regulations. Customs delays or seizures are beyond our control, but we do our best to assist with tracking and documentation.

• Domestic Orders: Delivered in 2–5 business days after processing.

• International Orders: Typically delivered within 7–15 business days, depending on customs clearance and destination.

You will receive a tracking number via email once your order is shipped.

Legality depends on your local jurisdiction and intended use. GoldenStateBio sells products strictly for laboratory research purposes, not for consumption. It is the buyer’s responsibility to ensure their purchase complies with applicable laws and regulations.

You can reach us via:

• 📧 Email: support@goldenstatebio.com

• 🕒 Support Hours: Monday to Friday, 9 AM – 5 PM PST

• 📩 Or fill out the contact form on our website and we’ll respond within 24 hours.