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Research-Grade
Peptides You Can Trust

HPLC-verified purity. A Certificate of Analysis is available with every order. A focused range of research compounds — from single peptides to multi-compound blends.

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HPLC

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COA

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HPLC Verified

Per Batch

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COA Available

With Every Order

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Fast Shipping

3–7 Day Global

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Our Range

Featured Research Compounds

A focused selection of research peptides and blends. Hover or tap for details.

Compound

NAD+

Nicotinamide adenine dinucleotide for in vitro research.

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Antioxidant

Glutathione

Tripeptide antioxidant research compound.

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Peptide

Reta

Research peptide for in vitro studies.

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Peptide

Triz

Research peptide for in vitro studies.

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Premium

Premium Blend

KLOW

Multi-peptide research blend.

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Blend

GLOW

Multi-peptide research blend.

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Blend

Peptide Blend

Combination research formula.

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Service

Custom Synthesis

Custom peptide synthesis to your specification.

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About Us

Advancing In Vitro Research Through Molecular Precision

Founded by biochemists and biochemical engineers, Tianji Peptide focuses on consistent, analytically verified peptide synthesis for laboratory research. We supply research facilities, biotech companies, and individual scientists internationally.

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Supply Chain Transparency

Traceable from raw material to final QC release, with batch-level documentation.

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Multi-Stage Verification

Internal HPLC and analytical validation before release.

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Biochemist Support

Scientific consultation, custom formulation, and bulk inquiries.

HPLC

Verified

COA

Per Batch

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Custom

Synthesis

Feature	Tianji Peptide	Competitor A	Competitor B
Certificate of Analysis Included	check_circle	cancel	cancel
Cold-Chain Shipping	check_circle	check_circle	cancel
Custom Blend Formulation	check_circle	cancel	cancel
Volume Supply Availability	check_circle	check_circle	cancel
Responsive Technical Support	check_circle	cancel	cancel

Global Distribution

Cold-Chain Logistics Network

Temperature-controlled international distribution, typically within 3–7 business days, to help preserve molecular integrity in transit.

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Secure Packaging

Vacuum-sealed units in cushioned, tamper-evident containers with lot tracking.

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Temperature Control

Gel packs and insulated containers maintain 2–8°C throughout transit.

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International Shipping

Tracked shipping with full customs documentation.

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Customs Clearance

Documentation support for smooth customs processing.

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Frequently Asked Questions

What purity level do your peptides achieve? expand_more

Each product is manufactured to a high-purity specification and verified by HPLC. A Certificate of Analysis with HPLC data is available on request.

How can I verify the purity of my specific batch? expand_more

Every unit includes a batch number on the label. Contact our team with your batch number to receive the available Certificate of Analysis for that batch.

How should I store the peptides? expand_more

Lyophilized samples should be stored at -20°C in a dry, dark environment. Once a unit is opened for laboratory analysis, store the working sample at 2-8°C and complete all assays within 30 days. Minimize thermal cycling to preserve molecular stability.

What countries do you ship to? expand_more

We ship internationally with fully tracked delivery. Typical transit is 3-7 business days. All shipments include customs documentation.

Do you offer volume supply options? expand_more

Yes. Contact us for volume availability and supply terms. Submit your requirements through the inquiry form and we will provide a quote within 24 hours.

What payment methods do you accept? expand_more

We accept Visa, Mastercard, AMEX, and bank wire transfers. All transactions are processed through 256-bit SSL encryption.

Can I request a custom peptide blend? expand_more

Yes, we offer custom formulation services. Contact our team with your specifications and we will provide a feasibility assessment, timeline, and supply terms within 48 hours. Custom synthesis typically takes 14-21 business days.

What is the intended use of these compounds? expand_more

Research Use Only. All products on this website are supplied exclusively for in vitro laboratory research and analytical purposes by qualified scientific professionals. These compounds have not been evaluated or approved by any regulatory authority for use in humans or animals. They are not medicines, drugs, dietary supplements, or medical devices. They are not intended for human consumption, veterinary administration, or diagnostic use. By placing an order, the purchaser confirms: (1) they are a qualified researcher; (2) the compounds will be used solely for lawful in vitro research; and (3) they will comply with all applicable laws and institutional guidelines.

What is your return/refund policy? expand_more

We offer replacements for damaged or incorrect orders. If a product does not match its COA specifications upon your independent testing, we will replace it or issue a refund. Contact support within 7 days of delivery.

How long does order processing take? expand_more

Standard orders are processed and shipped within 24-48 hours of payment confirmation. Bulk and custom orders may require additional time. You will receive tracking information via email as soon as your order ships.

Research-Grade
Peptides You Can Trust

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Featured Research Compounds