Research Peptides FAQ
What are research peptides?
Peptides are short chains of amino acids used extensively in laboratory settings. Investigators employ them in vitro and in pre-clinical models to explore cell signaling, receptor interactions, protein folding, and metabolic pathways.
Are peptides legal to purchase for research?
Yes. In the United States and most countries, lyophilized peptides sold explicitly “For Research Use Only” and not for human consumption are legally available to qualified researchers, institutions, and laboratories.
Are peptides safe?
All Nationwide Peptides products are strictly for laboratory and in vitro/in vivo research by trained professionals. Safety profiles reported in scientific literature apply only to controlled experimental conditions, not to human administration. These compounds are not evaluated or approved for human use.
Where are your peptides sourced and manufactured?
All peptides are synthesized in registered, GMP-compliant facilities in the United States and Asia that adhere to strict ISO 9001 and 21 CFR guidelines. We partner only with manufacturers that have a multi-year track record of serving institutional and pharmaceutical research clients.
How do you guarantee purity?
Every batch undergoes independent third-party testing via High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry. Reported purity is ≥99.9% for all catalog items. Full Certificate of Analysis (CoA) with chromatograms is available for download on each product page and via batch-specific QR code.
Do you provide Certificates of Analysis (CoA)?
Yes—100% of batches include a publicly accessible CoA. Researchers may download them directly from the product page or request via support@nationwidepeptides.com.
How quickly do orders ship?
Orders placed before 1:00 PM EST (Monday–Friday) typically ship the same day. All domestic orders are sent via USPS Priority Mail (2–3 business days) or FedEx 2-Day with cold-chain packaging.
Do you ship internationally?
Yes. We ship to most countries. Customs delays and local import regulations are the responsibility of the recipient. Certain destinations may require additional documentation.
How are peptides shipped to maintain stability?
Peptides are lyophilized, sealed under inert gas, and shipped with ice packs in insulated packaging. Upon receipt, immediately transfer to -20°C freezer storage.
What is your return/refund policy?
Because these are perishable research compounds, we cannot accept returns once an order has shipped. If a vial arrives damaged or with incorrect labeling, please contact support within 48 hours of delivery with photos. We will replace or refund at our discretion.
What if my cold pack is warm on arrival?
Lyophilized peptides are remarkably stable at room temperature for several weeks. Independent stability studies confirm no degradation occurs during standard transit times. However, if you have concerns, contact us immediately and we will replace the order free of charge.
How should peptides be stored long-term?
Store lyophilized vials at -20°C in a non-frost-free freezer, protected from light and moisture. Properly stored, peptides remain stable for 3–5 years.
What is the best way to reconstitute peptides?
Most researchers reconstitute with bacteriostatic water or sterile acetic acid (for certain sequences). Always follow the specific recommendations listed on the product technical data sheet.