Contact us
Our AI assistant is our contact channel — it answers instantly, 24/7, for B2B enquiries about testing, turnaround, submitting a batch, and verification.
Assistant: Hi — I'm Guoda's AI assistant. I can answer questions about batch testing, turnaround, and how to submit. This is a B2B testing service. How can I help?
Try: “How do I submit a batch?”, “What is the turnaround time?”, “How does verification work?”
B2B only. This is an independent third-party peptide-testing and certificate-verification service for laboratories and businesses — not for individual/consumer sale.
Questions? Use our AI assistant — it’s our contact channel. © 1999–2026 Qingdao Guoda Biopharmaceutical Co., Ltd. Certificates are for research use only.