Haoduopeptide — Research-Grade Peptides | 好多肽
Third-party tested · COA with every batch Worldwide dispatch within 48 hours
Research-Grade Peptides

Precision peptides.
Verified purity.

Synthesized in ISO-certified facilities, purified by reverse-phase HPLC and confirmed by mass spectrometry. Every batch ships with a full certificate of analysis — so the only variable left in your experiment is the experiment itself.

HPLC + MS on every lot COA included by default Cold-chain worldwide
99.4%Average purity
480+Peptides in stock
48hDispatch time
30+Countries served
ISO 9001:2015 GMP Compliant HPLC Verified Mass Spec Confirmed Independent Labs Since 2014
Catalog

Built around your research

From metabolic and growth-factor peptides to fully custom sequences — every product is produced under identical synthesis, purification and quality-control standards.

Metabolic & GLP-1

High-purity incretin analogues for metabolic pathway, receptor-binding and appetite-signalling studies.

SemaglutideTirzepatideRetatrutide

Growth & Recovery

Repair-focused peptides widely used in tissue regeneration, angiogenesis and cell-migration models.

BPC-157TB-500IGF-1 LR3

Cosmetic & Dermal

Copper peptides and collagen-signalling fragments for dermal, cosmetic and formulation research.

GHK-CuMatrixylSnap-8

Cognitive & Neuro

Neuropeptide analogues for neurobiology, behavioural pharmacology and neuroprotection research.

SemaxSelankDihexa

Immune & Thymic

Immunomodulatory peptides for host-defence, inflammation and thymic-function investigations.

Thymosin α-1LL-37KPV

Custom Synthesis

Bespoke sequences from 5 to 60 residues, with modification, labelling and scale-up options available.

5–60 aamg → kgModified
Quality & Science

Documented at every step

Purity is not a claim — it is a measurement. Each lot is independently analysed and released only after it passes our four-point verification protocol.

HPLC purity analysis

Reverse-phase chromatography on every lot, with the full chromatogram published in the COA.

Mass spectrometry identity

Molecular weight confirmed against the theoretical sequence mass — no ambiguity, no guesswork.

Full batch traceability

Every vial carries a lot number linking back to its synthesis, purification and QC records.

Cold-chain handling

Lyophilised, sealed under inert gas and shipped in temperature-stable, discrete packaging.

Certificate of Analysis
LOT #PV-2419
99.4% Purity · Passed
MethodRP-HPLC / ESI-MS
AppearanceWhite lyophilised powder
Storage−20 °C, protected from light
Independently verified · Full report available on request
Process

From sequence to shipment

A short, transparent chain of custody — you always know exactly where your material is.

01

Select or specify

Choose from 480+ catalog peptides, or send us a sequence for fully custom synthesis and quoting.

02

Synthesis & purification

Solid-phase synthesis followed by reverse-phase HPLC purification to your target purity grade.

03

Independent QC

Purity, identity and appearance verified by third-party laboratories. Certificate of analysis issued.

04

Cold-chain dispatch

Sealed, labelled and shipped within 48 hours, with tracking to more than 30 countries.

Specifications

The technical details

Standard parameters across the catalog. Custom requirements are accommodated on request.

Purity grade
≥ 98% (HPLC), up to ≥ 99.5% on request
Form
Lyophilised powder, sealed under inert gas
Pack sizes
2 mg · 5 mg · 10 mg · 50 mg · 100 mg · bulk
Sequence length
5 – 60 residues (custom)
Storage
−20 °C, protected from light and moisture
Solubility
Water, DMSO, or as specified
Documentation
COA, HPLC trace, mass spectrum
Lead time
48 h in stock · 10–14 days custom
Applications

Where our peptides are used

Supplying academic, contract-research and industrial laboratories across a broad range of disciplines.

Receptor pharmacology

Binding affinity, dose–response and signal-transduction studies using well-characterised reference sequences.

Cell culture & assays

Proliferation, migration, differentiation and cytotoxicity assays requiring low-endotoxin material.

Structural biology

Crystallography, NMR and cryo-EM work where sequence fidelity and purity are decisive.

Analytical method development

Reference standards and calibration material for LC-MS and immunoassay development.

Cosmetic formulation research

Dermal signalling peptides for in-vitro skin models and formulation stability testing.

Custom conjugation

Fluorescent labels, biotinylation, pegylation and carrier-protein conjugation on request.

Company

Registered entity & facility

All products are manufactured and dispatched from our facility in Shanghai, China.

Legal name

好多肽

Haoduopeptide (Shanghai) Industrial Co., Ltd.

Unified social credit code

91310230MAEJQJ9Q3X

People's Republic of China

Factory address

上海市崇明区横沙乡红丰路33号

(上海横泰经济开发区)
No.33 Hongfeng Road, Hengsha Township, Chongming District, Shanghai, China
FAQ

Questions we hear often

Is a certificate of analysis included?

Yes. Every lot ships with a COA containing the HPLC chromatogram, mass-spectrometry result, appearance, storage guidance and lot number. Historical COAs are archived and retrievable by lot number.

How are peptides shipped?

Lyophilised peptides are sealed under inert gas and dispatched in temperature-stable packaging. In-stock items leave our Shanghai facility within 48 hours; custom sequences typically require 10–14 days.

Can I request a different purity grade?

Absolutely. Our default release specification is ≥ 98% by HPLC, and we routinely produce material at ≥ 99.5% for applications where trace impurities matter.

Do you offer custom sequences?

Yes — from 5 to 60 residues, with options for modifications, labels, conjugations and scale-up from milligram to kilogram quantities. Send us the sequence and required quantity for a quote.

How should peptides be stored?

Store lyophilised powder at −20 °C, protected from light and moisture. Once reconstituted, aliquot and store according to the guidance on the COA to avoid repeated freeze–thaw cycles.

What are the products used for?

All products are sold strictly for laboratory research purposes. They are not intended for human or veterinary use, diagnosis, or therapeutic application, and are not for resale to consumers.

Contact

Talk to our technical team

Tell us the peptide, the quantity and the purity you need. A member of our team replies to every enquiry within one business day — usually much sooner.

Legal entity

好多肽

Haoduopeptide (Shanghai) Industrial Co., Ltd.

Unified social credit code

91310230MAEJQJ9Q3X

Factory address

上海市崇明区横沙乡红丰路33号

(上海横泰经济开发区)
Chongming District, Shanghai, China

WhatSapp

+85253573809

Business hours

Mon – Fri · 00:00 – 24:00 CST

Dispatch

Orders placed before 14:00 CST ship the same business day.