Question 1

What are research peptides and who are they for?

Accepted Answer

Research peptides are short chains of amino acids supplied strictly for in-vitro laboratory use. Maru Core Labs products are intended for licensed researchers and educational institutions only. Not for human or veterinary use.

Question 2

Do you provide a Certificate of Analysis (COA) for every batch?

Accepted Answer

Yes. Every batch is third-party tested by an independent lab for identity, purity (HPLC), and mass (MS). COAs are accessible from your order page and the product detail page.

Question 3

How should I store peptides?

Accepted Answer

Lyophilized vials should be stored at 2–8°C for short term, or -20°C for long-term storage, protected from light.

Question 4

How long does shipping take?

Accepted Answer

Orders are processed within 48 hours of payment confirmation. Standard shipping arrives in 5–7 business days; expedited shipping arrives in 3–5 business days. Tracking is emailed once the label is created.

Question 5

What is your refund and replacement policy?

Accepted Answer

If a vial arrives damaged or fails QC, contact info@marucorelabs.com within 7 days of delivery with photos and your order code. We replace or refund verified issues.

Question 6

How do I contact support?

Accepted Answer

Email info@marucorelabs.com or use the contact form. We typically respond within 12–24 hours, Monday through Friday.

Question 7

Do you ship internationally?

Accepted Answer

We currently ship within the United States. International availability is evaluated case-by-case — contact support before ordering.

Frequently asked questions