Frequently Asked Questions

Peptides are short chains of amino acids — the same building blocks that make up proteins in your body. They act as biological messengers, signaling your cells to perform specific functions such as producing collagen, releasing growth hormone, repairing tissue, or regulating metabolism. Because peptides are naturally occurring and highly targeted, they offer a precise and effective way to support your body's own processes for recovery, performance, skin health, and overall wellness.

The best peptide for you depends on your specific wellness goals. For muscle growth and athletic performance, consider our Bodybuilding Peptides range. For skin rejuvenation and anti-aging, explore our Skincare Peptides. For mental clarity and focus, our Cognitive Peptides are ideal. For injury recovery and healing, our Healing Peptides offer targeted support. Browse our categories or contact our team — we're happy to help you find the right fit for your needs.

Most lyophilized (freeze-dried) peptides should be stored at -20°C in their original sealed vials to maintain maximum potency. Once reconstituted, store at 2–8°C and use within 28 days. Always protect from light and moisture. Specific storage instructions are provided on each product page and included with every order to ensure you get the best results.

Every product we offer includes a Certificate of Analysis (CoA) confirming purity levels, typically ≥98% or higher. All products are independently verified by third-party HPLC analysis and mass spectrometry. We publish purity information on each product page and CoA documents are available upon request — because transparency is at the core of everything we do.

We offer Standard Shipping ($12, 5–7 business days) and Express Shipping ($25, 2–3 business days). Orders over $150 qualify for free standard shipping. All orders are shipped in discreet, temperature-appropriate packaging to maintain peptide integrity and potency during transit.

Standard shipping typically takes 5–7 business days within the continental US. Express shipping delivers in 2–3 business days. International orders may take 10–21 business days depending on destination and customs clearance. All orders are processed within 1–2 business days of placement.

Once your order ships, you will receive a tracking number via email. You can use this number to track your package through our carrier's website. Tracking information is typically updated within 24 hours of shipment. For questions about your order status, contact us at info@peptidelabs.com.

We accept all major credit and debit cards (Visa, Mastercard, American Express), PayPal, and bank transfers. All transactions are processed through secure, encrypted payment gateways to protect your personal and financial information.

Orders can be modified or cancelled within 2 hours of placement, before they enter the processing queue. After processing begins, changes may not be possible. Please contact us immediately at info@peptidelabs.com if you need to modify an order. Returns are accepted for unopened products within 14 days of delivery.

Absolutely. Every product in our catalog is independently tested by ISO-certified third-party laboratories using HPLC analysis and mass spectrometry. We never rely solely on manufacturer certificates — we verify purity and identity ourselves before any product reaches our shelves. Certificates of Analysis are available for every batch, and we publish purity specifications transparently on each product page.