What we make
Research peptides as raw powder or lyophilized vials, including GLP-1 class peptides, copper peptides and short synthetic sequences. See the catalog for the full list.
SeqLine Bio · About
About SeqLine Bio
A research peptide manufacturer in Guangzhou.
We make research peptides as raw powder and lyophilized vials. Synthesis, purification, lyophilization, QC testing and packaging run on our own line in Science City, Huangpu District. We sell direct to B2B buyers, for research use only.
What we do
Material first, packaging on request.
Most orders are peptide material in a neutral-label vial or as raw powder. Labels, cartons and inserts are added when a buyer wants their own brand on the product.
Every published lot has a public COA with its HPLC purity result and MS molecular-weight identity. Our release specification is NLT 98.0% by HPLC.
What you receive
A quotation with price and lead time, the COA for the lot you would receive, and shipping details. Private-label packaging if you order it.
Who buys from us
Research laboratories, raw-material distributors and brands running private-label lines. We do not sell to consumers.
What we do not do
No consumer sales. No dosing, medical or human-use advice. See our compliance position.
Order sizes
From one kit to bulk.
Sample kit
1 kit = 10 vials, available for most catalog compounds. Confirmed stock: within 3 business days after written payment confirmation; samples requiring preparation: 3–7 business days after specification and payment confirmation. Stock and the dispatch date are confirmed before payment.
Volume pricing
Price steps at 10, 100 and 1,000 kits.
Production lots
Ship 7–15 business days after specification and payment confirmation, each with its own batch documents.
Private label
Your label, carton and insert from 100 kits (1,000 vials). Neutral label by default.
Next step
Send your compound list.
Tell us the compound, quantity, format and destination. We reply within 4 hours during business hours with price, lead time and the lot COA.