Answers to common questions about orders, shipping, storage, and our research programs.
Frequently Asked Questions
Who can purchase from Peptider?
Peptider sells exclusively to verified research professionals, academic institutions, and licensed laboratories. All customers must confirm research intent at checkout. Products are not for human or veterinary consumption.
How are peptides shipped?
All peptides ship lyophilized in sealed, amber vials with desiccant. Cold chain shipping is available upon request. We ship next-day air by default on orders placed before 12pm EST.
What purity guarantee do you offer?
Every batch is guaranteed minimum 98.8% purity by HPLC, with a Certificate of Analysis from an accredited third-party laboratory included with every order.
How should I store lyophilized peptides?
Store lyophilized peptides at -20°C away from light and moisture. Upon reconstitution with bacteriostatic water, store at 2-8°C and use within 4-6 weeks.
Do you offer bulk or institutional pricing?
Yes. Apply for a Research Account for institutional pricing (15-35% off), priority fulfillment, and custom synthesis options. Approval within 1-2 business days.
What payment methods do you accept?
We accept all major credit cards, bank transfer (ACH/Wire), and institutional purchase orders for approved research accounts.
Can I get a custom peptide synthesized?
Yes. Contact us via the Partner With Us page for custom synthesis inquiries. Minimum order quantities and lead times vary by sequence and quantity.
Standard shipping takes 3–5 business days within the US. Expedited options are available at checkout for 1–2 business day delivery.
Do you ship internationally?
We currently ship within the United States. International shipping options are being evaluated and will be announced soon.
Is shipping discreet?
Yes. All orders ship in plain, unmarked packaging with no external branding or product descriptions visible.
How much does shipping cost?
Standard shipping is complimentary on orders over $150. Orders under $150 have a flat $9.95 shipping fee.
What are the storage requirements?
Lyophilized peptides should be stored at -20°C for long-term stability. Refer to each product’s specification sheet for specific storage conditions.
Do you use temperature-controlled shipping?
Yes. Temperature-sensitive products ship with insulated packaging and cold packs to maintain proper conditions during transit.
What is your return policy?
Unopened products in original condition may be returned within 14 days of delivery. Due to the nature of research materials, opened products cannot be returned.
What if my order arrives damaged?
Contact us immediately with photos of the damage. We will ship a replacement at no additional cost.
Are your products third-party tested?
Yes. Every batch undergoes independent third-party purity and identity testing via HPLC and mass spectrometry. Certificates of Analysis are available for each product.
What purity level are your peptides?
All research peptides are verified at ≥98% purity. Most products exceed 99% purity as confirmed by HPLC analysis.
How do I request a COA?
COAs are available on each product page. For batch-specific documentation, contact info.peptider@gmail.com with your order number.
Can you provide dosing or usage guidance?
No. Peptider cannot provide personal-use guidance, dosing protocols, reconstitution instructions, or administration methods. All products are for research use only.
Are these products for human use?
No. All products are sold strictly for in vitro research and laboratory use only. They are not intended for human or veterinary consumption
Does Peptider manufacture compounded medications?
No. Peptider does not manufacture compounded medications. Actual product appearance and labeling may differ from website images.
How do I contact support?
You can reach us via the contact form in this panel or by emailing info.peptider@gmail.com. We respond within 24 hours on business days.