Frequently Asked Questions

Yes. All of our peptides are synthesized directly in the United States in WHO/GMP and ISO 9001:2015 approved manufacturing facilities, ensuring the highest standards of production and quality control.

Every batch of our peptides undergoes rigorous HPLC (High-Performance Liquid Chromatography) and Mass Spectrometry testing to guarantee a minimum purity level of 99%+. Batch-specific Certificates of Analysis (COAs) are available for verified researchers.

No. All products sold by Peptide Sciences are strictly intended for laboratory research, analytical, and scientific purposes only. They are not for human consumption, medical diagnosis, veterinary use, or household application.

Orders placed before 1:00 PM PST Monday through Friday are processed and dispatched on the same business day. Standard domestic shipping typically takes 2-4 business days via USPS Priority or FedEx.

Yes, we ship globally to accredited researchers and laboratory facilities. International orders are packaged discretely to ensure safe and prompt customs clearance.

We accept major credit cards (Visa, MasterCard, Discover), Zelle, eCheck, and major cryptocurrencies (Bitcoin, USDT, Ethereum) which feature instant order processing discounts.

Because orders enter automated processing quickly, please contact customer support immediately at Info@peptidesciencesales.com if you need to request an update prior to dispatch.

Freeze-dried (lyophilized) peptides should be kept in a cool, dry place away from direct sunlight. For short-term storage (under 3 months), refrigerated storage at 2-8°C is recommended. For long-term preservation, store in a freezer at -20°C.

Lyophilized peptides are highly stable at room temperature for up to 30 days during transit without degrading. Refrigeration is only required once reconstituted or for extended long-term storage.