Factory-direct peptide manufacturerResearch use only · B2B buyersRFQ reply within 4 business hours
SeqLine Bio — China peptide manufacturerQuote 0

Catalog · samples, bulk & private label

Every compound we make, ready to quote.

GLP-1 research peptides, BPC-157 and TB-500, Semax, Selank, GHK-Cu and more, all from our own line. Add strengths to one RFQ for a 1-kit sample, bulk pricing or private-label packaging.

Choose how to verify.

Verified bulk lot

Request batch-matched third-party HPLC and MS before production. Your confirmed lot is tested and supplied with its matching COA.

Trial first

Test your trial at a qualified local lab. If it fails the agreed written specification, we verify the report and replace or refund the trial product price.

Repair & recovery

Growth-hormone axis

Beauty & skin

Research & metabolic

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GLP-1 family — research peptides.

Supplied as research peptides for qualified buyers worldwide — buyers confirm local regulatory compliance. Read the GLP-1 2026 update →

GLP-1 family

Complete research-peptide range

The full range of research peptides we supply. Add any item to your quote and we’ll confirm price, COA and current availability.

Thymalin

Thymalin

Research peptide · specs on request
10mg / 20mg
Batch documents confirmed by RFQ
OEM only · 50 kits min
Search COA library for Thymalin →
View details →

Supporting items

Images show finished-vial examples. Neutral labels are standard; custom labels and branded packaging are available.

Buyer FAQ

Questions buyers ask before sending an RFQ.

What is the MOQ for a first order?

Sample orders are available for selected catalog products from 1 kit (10 vials) per strength. Products marked OEM only are made to order and begin at 50 kits (500 vials). Documentation requirements are confirmed with the RFQ.

Which GLP-1 compounds can I order, and where?

Tirzepatide, retatrutide and cagrilintide are supplied for worldwide distribution, research and private-label brand evaluation. They are supplied as research peptides; therapeutic use is governed separately by each market.

How is batch documentation handled?

For confirmed bulk orders, batch-matched COA, HPLC and MS verification can be arranged when requested before production. Trial buyers may independently test the supplied lot before scaling.

How do I send a structured RFQ from the catalog?

Click Add to quote on each product card, then open /quote, choose a verification path and send. We reply within 4 business hours with price, documentation options, lead time and shipping estimate.

Do you ship private-label / white-label peptide vials?

Yes — neutral or branded labels, carton design, insert and a per-lot document pack. See the private-label OEM service path for the six-step workflow from inquiry to repeat shipment.

Procurement guides

Raw-material sourcing pages for buyers comparing suppliers.

These pages support specific RFQ intent without changing the main catalog path.

GLP-1 extended materials

Liraglutide manufacturer & raw material supplier
Cagrilintide raw material supplier
Mazdutide raw material supplier
Survodutide raw material supplier

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