1 · Define the RFQ
Send your company, destination, research use, compounds, strengths, quantity and artwork or packaging brief. Confirm the contracting entity, payee, production site, releasing QC and written quality-claim terms before payment.
SeqLine Bio · Private-label OEM
Private label · B2B research supply
Your label on research peptides, from 100 kits.
Start at 100 kits (1,000 vials), with your label, carton, insert and a lot-specific COA. Check a neutral-label sample where available, then approve packaging before production. Private-label dispatch is 7–15 business days after specification, payment and artwork approval.
Order scope
Confirm the material, packaging and documents together.
| Item | What to confirm |
|---|---|
| Minimum run | 100 kits (1,000 vials). Confirm quantities by compound and strength in the quotation. |
| Material | Compound, strength, quantity and intended lot; SeqLine Bio makes and tests the peptide on its line in Guangzhou. |
| Packaging | Vial label, carton and insert from your artwork or a brief. Confirm included items and approve the proof. Packaging formats → |
| Neutral-label option | Neutral label is the default when custom artwork is not used. A neutral-label sample is a separate material check, not a completed private-label run. |
| Dispatch | Production lots: 7–15 business days after specification and payment confirmation. Agree the start date after specification, payment and artwork approval; transit and customs processing take additional time. Confirm DDP or other delivery terms → |
| Lot documents | COA with HPLC purity and MS molecular-weight identity. The lot on the label must match the shipment COA. Public COA library → |
From sample to reorder
Six checkpoints for a private-label run.
2 · Check material first
For eligible catalog compounds, start with a neutral-label sample from 1 kit (10 vials). 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. Set trial criteria →
3 · Approve the proof
Check brand, compound, strength, research-use wording, storage and lot-code placement on each packaging item. Resolve changes and approve the proof before production.
4 · Confirm production
Agree specification, payment, artwork approval and the dispatch schedule. The lot is produced, QC tested and packed on our line in Guangzhou.
5 · Match lot and documents
Match the shipment COA to the label lot number and approved packaging. Check the dispatch documents against the confirmed delivery terms. Procurement verification →
6 · Review the reorder
Use approved artwork where applicable. Confirm the new lot and its own COA, quantities, packaging and dispatch schedule for each reorder.
Artwork and release
Approve label content within the research-use boundary.
Labels describe your brand, compound, strength, lot, storage conditions and research-use-only status. We do not print dosing, administration routes, health or effect claims, or certification claims, and do not supply packaging for human use.
A lot COA reports HPLC purity and MS molecular-weight identity; it does not establish net content, sterility, endotoxin, stability or biological activity. Review the quality policy and confirm any additional test requirements in your RFQ.
FAQ
Questions before you order.
What is the private-label minimum?
100 kits (1,000 vials); 1 kit equals 10 vials. The quotation confirms quantities by compound and strength, packaging scope and the production schedule.
Can I check a sample before approving packaging?
Yes, most catalog compounds can be ordered as a neutral-label sample from 1 kit (10 vials). Made-to-order products start at 100 kits; confirm sample availability for the requested compound and strength.
What packaging can I request?
Vial label, carton and insert from your artwork or a brief. Confirm the included items in the quotation and approve the proof, including lot-code placement, before production.
When will a private-label order ship?
Private-label orders dispatch in 7–15 business days after specification, payment and artwork approval. Transit and customs processing are additional. DDP is confirmed for supported products and destinations before payment.
Will a reorder use the same COA?
Each new lot has its own COA. Reorders may use approved artwork, but the lot number printed on the label must match the COA for that shipment.
Next step
Send a packaging brief with your compound list.
Include company, destination, research use, compounds, strengths, quantities and the label, carton or insert you need. We reply within 4 business hours with price, proof steps and lead time.