jessica M.
I placed an order for nad+ and…
I placed an order for nad+ and tesamorelin. I only received the tesamorelin. I have emailed Excaliber Peptides several times asking them to send me nad+ I haven't heard back from anyone.

Excalibur Peptides is America's #1 certified supplier of lab-grade research peptides, proudly based in the USA with fast domestic shipping and no international customs delays.We specialize in providing high-purity research compounds for laboratory and scientific use only. Our extensive catalog includes popular peptides such as BPC-157, TB-500, Wolverine Blend (BPC-157 + TB-500), KLOW Blend, GHK-Cu, Tesamorelin, GHRP-6, , MOTS-c, NAD+, and many more specialized formulations.What sets us apart is our uncompromising commitment to quality. Every batch undergoes rigorous third-party testing with independent Certificates of Analysis (COAs) and achieves 99%+ purity verified by HPLC. We believe researchers deserve complete transparency and reliability, which is why we provide full safety data sheets and maintain strict quality control standards.As a domestic USA supplier, we offer quick 2-day shipping across the country, secure checkout, and excellent customer support. Whether you're conducting advanced research in healing, metabolic studies, anti-aging pathways, or mitochondrial function, Excalibur Peptides delivers consistent, high-purity compounds you can trust.We are more than just a vendor — we’re a partner to the research community. Our site also features a growing research library, detailed FAQs, and a blog with educational content to help scientists stay informed.
Excalibur Peptides (excaliburpeptides.com) has 30 customer reviews on Five Star Index, with an average rating of 4.9 out of 5.
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jessica M.
I placed an order for nad+ and tesamorelin. I only received the tesamorelin. I have emailed Excaliber Peptides several times asking them to send me nad+ I haven't heard back from anyone.
Katie H.
Top notch products and company. All products are batch tested to ensure quality. I love knowing I’m getting a great product. My entire experience with Excalibur was 10/10. Definitely recommend!
Mark M.
"An Outstanding Experience from Start to Finish" From the moment I placed my order to the moment it arrived at my door, the entire experience was seamless and stress-free. The ordering process was straightforward and intuitive, making it easy to find exactly what I needed without any hassle. What truly set this company apart was their exceptional customer service. The team was prompt, attentive, and genuinely helpful — addressing every question and concern with professionalism and care. To top it all off, delivery was fast and timely, exceeding my expectations. It's rare to find a company that executes every step of the customer journey this well. I would highly recommend this company to anyone looking for a reliable, top-tier experience. I will absolutely be returning for future purchases.
Dustin B.
Absolutely the best. Super quick delivery. Absolutely the best quality. I can’t recommend it enough.
Jack I.
I wouldn't recommend any other company. In the time everything took to get here and the way the packaging was done, I couldn't say anything negative about the business. Don't even get me started on the quality. I love it!
James T.
Quick shipping, great customer service, and quality products.
Patrick M.
Great products! Best I’ve ever used!
Paige
Hands down best product quantity ever. Exceptional customer service. Highly recommended. I will remain a lifelong customer.