Cosmetic Peptides
Peptide ingredients for skincare development, cosmetic formulations, and beauty applications.
Learn More
Peptide Manufacturer & Supplier
High-Purity Peptides
High-Purity Peptides
for Research, Beauty & Nutrition
DUOTAI Peptide brings together peptide sourcing and custom project support for laboratories, ingredient brands, and distribution partners — with clear specifications and a focus on analytical documentation.
10+Years of expertise
500+Catalog peptides
40+Markets worldwide
99%+Target analytical purity
Illustrative company metrics — update with verified business data before publication.
10+Years in peptides*
About DUOTAI
Peptide Manufacturing and Supply for Global Projects
From formulation ingredients to laboratory materials, every project begins with the right specification. Discuss catalog sourcing or a tailored sequence, and define the documentation, scale, and delivery requirements with our team.
Production Review
Defined processes and specifications.
Analytical Quality
HPLC and identity requirements.
Custom Synthesis
Sequence-led project discussions.
Global Logistics
Packaging and delivery planning.
- Discuss your COA, safety data, and analytical documentation needs
- Explore sample, development, and larger-scale quantities
- Contact the team for business and distribution inquiries
What We Offer
Peptide Solutions by Application
Explore the product direction that fits your laboratory, formulation, or ingredient development project.
Research Peptides
Peptide materials for laboratory projects, supported by the specifications your study requires.
Learn MoreNutritional Peptides
Bioactive ingredients for product development in nutrition, beverages, and functional foods.
Learn MoreReference Standards
Materials for analytical method development and research quality-control programs.
Learn MoreCustom Synthesis
Discuss your amino-acid sequence, modifications, purity requirements, and production scale.
Learn MoreBulk Supply
Plan larger-volume sourcing with an agreed specification, quotation, and delivery schedule.
Learn MoreFeatured Peptides
Explore Our Peptide Collection
Browse selected product references, then contact the team to confirm specifications, availability, and pricing.
Applications
Supporting Your Industry
Peptide sourcing shaped around the needs of formulation, research, nutrition, and analytical projects.
How We Work
From Your First Inquiry to the Delivery Plan
Start with a direct discussion so product requirements, analytical criteria, and commercial details can be agreed together.
1
Send Your Inquiry
Share the product or sequence, quantity, and required purity.
2
Quotation & Sample
Review the proposal, technical requirements, and sample options.
3
Production & QC
Agree on manufacturing specifications and analytical verification.
4
Packaging & Shipping
Confirm handling conditions, packaging, and the delivery plan.
Why DUOTAIClear Specifications.
Get Started
Clear Specifications.
Practical Project Support.
Make informed sourcing decisions with an agreed quality brief, relevant documentation, and a clear point of contact throughout your project.
Technical Documentation
Specify the reports and safety documents your project requires.
Traceability & Review
Discuss batch information and the applicable quality requirements.
Project Planning
Review sampling, timing, and supply options with our team.
Standards & Compliance
Quality Standards & Documentation
ISO 9001:2015ISO 22716 (Cosmetic GMP)ISO 9001REACHHalalKosher
Reference standards shown for layout purposes; certification status must be confirmed.
Testimonials
A Partnership Built Around Your Needs
★★★★★
A clear specification and accessible documentation make it easier for a formulation team to evaluate ingredients and plan the next development stage.
RD
Formulation PartnerSample feedback · Cosmetics
★★★★★
A useful research partnership starts with careful questions, transparent analytical requirements, and a realistic discussion of project timing.
LR
Laboratory PartnerSample feedback · Research
★★★★★
Good procurement depends on understanding the material, the supporting documents, and the delivery arrangements before an order is placed.
PS
Distribution PartnerSample feedback · Supply
FAQ
Your Questions, Answered
Are evaluation samples available?
Tell us which product you are evaluating and the amount you need. Sample availability, pricing, and delivery can be discussed in your inquiry.
Is there a minimum order quantity?
Quantities depend on the product and specification. Send your intended scale so our team can review the options and prepare an appropriate quotation.
Which technical documents can I request?
Include your documentation needs when contacting us, such as a COA, safety data sheet, chromatographic data, or identity analysis. The available documents will be confirmed for the selected material.
Can I ask for a custom peptide?
Include the amino-acid sequence, modifications, target purity, quantity, and timeline. These details allow the team to review feasibility and discuss the next steps.
How is international delivery arranged?
Share your destination and any handling requirements. Packaging, delivery conditions, shipping options, and necessary paperwork should be agreed before the order is confirmed.
Our Blog
Insights from Peptide Science
A closer look at documentation, analytical methods, and the questions behind a sourcing decision.
Quality & TestingJune 4, 2026
Reviewing a Peptide Analysis Certificate
What to check when reviewing batch information and analytical documentation.
Read More
Handling & StorageJune 2, 2026
Planning Peptide Handling and Storage
Practical questions to include in a material handling and storage review.
Read MoreQuality & TestingMay 29, 2026
Understanding HPLC and Mass Spectrometry
Two complementary ways to examine peptide identity and analytical quality.
Read MoreGet In Touch
Request a Quote
Discuss product details, documentation, and quantities directly with our team on WhatsApp.
- A personal conversation about your project
- Share your specification and sample needs
- Business and distribution inquiries welcome
Tell Us About Your Project
Complete the form to start a WhatsApp conversation.