11guides for B2B buyers
40+countries served
28research peptide SKUs
1 dayquote turnaround
SPK Pharma India · Blog
B2B peptide sourcing, quality and import guides
Practical guides for licensed buyers and distributors — verifying peptide purity, reading a COA, evaluating suppliers in India and China, HS codes and import duty, export documentation and the questions that separate a reliable partner from a risky one.
2026-10-29
How to verify peptide purity before importing from India
Buyer's checklist for verifying peptide purity from any India peptide supplier: HPLC identity, mg/vial, lot-matched COA, and the red flags to walk away from.
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2026-10-29
What to look for in an India peptide supplier (B2B framework)
An India peptide supplier checklist: regulatory standing, quality documentation, export capability and logistics, and the questions that reveal a real partner
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2026-10-29
Reading a peptide COA: six things to check
How to read a peptide Certificate of Analysis: HPLC, mass spec, purity, peptide content and counter-ion — six things to check before accepting a shipment.
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2026-10-29
Importing research peptides into India: HS code, duty and documentation
The real numbers for importing research peptides into India: HS codes 2937 19 00 and 2937 90 90, BCD 7.5%, SWS, IGST 18%, and the reference standard rate.
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2026-10-29
Peptide supplier China: a B2B buyer’s guide
What to check before sourcing from a peptide supplier China operation: NMPA licensing, documentation tiers, pricing, shipping terms and dispute resolution.
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2026-10-29
Peptide supplier China: pricing and quality benchmarks
Price benchmarks for a peptide supplier China across BPC-157, semaglutide, tirzepatide, PT-141 and more — and which quality tier justifies each price level.
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2026-10-29
Fake peptides from China: seven red flags and how to test
How to spot fake peptides from any peptide supplier China operation: seven red flags, four independent tests, and what to verify before releasing a deposit.
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2026-10-29
Research peptide storage and reconstitution guide
How to store, handle and reconstitute research peptides: lyophilised storage temperature, stability, reconstitution media, and what to avoid.
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2026-10-29
Certificate of Origin vs COA vs DMF: what buyers actually need
CoO, COA and DMF are not interchangeable. What each one proves, who issues it, and the export pack a B2B pharma buyer needs with every consignment.
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2026-10-29
Pharma exporter compliance checklist for buyers
A verification checklist for any pharmaceutical exporter: licence, IEC, documentation, batch traceability, and the red flags that disqualify a supplier.
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2026-10-29
How to write a peptide RFQ that gets accurate quotes
How to write a research peptide request for quotation that returns comparable quotes: the specification fields, quantities, destination and terms.
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What we cover
These guides are written for one reader: a licensed buyer, distributor or research procurement lead who is being asked to sign for material they have not yet verified. They are written from SPK Pharma's own operating experience as a Mumbai-based B2B pharmaceutical trading and export company — the same documentation, the same customs reality, the same verification workflow we run on our own inbound shipments.
- Verification — how to confirm what is actually in a vial before you pay for it
- Supplier evaluation — a repeatable framework for assessing a trading house, a manufacturer and a broker
- Customs — HS classification, duty rates, and the legitimate routes to reduce landed cost
- Export documentation — CoO, COA, DMF, MSDS and what a buyer should actually require
- Country guides — import requirements for the markets we ship to most
B2B trade only — request a quote
All peptides are research-grade, for in-vitro use only, and supplied against a valid drug licence. Tell us your sequence, quantity and destination and the trade desk will respond within one business day.