Precision Peptides, Manufactured to Spec, Documented to Prove It

PepCore Biosciences is a B2B peptide supplier serving three lines — research-grade peptides (RUO), dermal research reagents and custom synthesis — to laboratories, CROs and institutional buyers worldwide.

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Why buyers choose PepCore

Batch-specific COAEvery order
HPLC / LC-MS verified purity≥98% typical
RFQ response time< 24 hours
Custom synthesismg → kg scale
Shipping ex-worksEU · US · CN

Three product divisions

One supplier, three compliant supply chains

Every division runs on its own dedicated production line, documentation set and regulatory pathway — so your sourcing is always audit-ready.

For Laboratory Use Only

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Research Peptides (RUO)

Analytical-grade synthetic peptide standards for in vitro research, assay development and method validation. Sold strictly for laboratory research — not for human or veterinary use. Full COA, HPLC trace and MSDS with every batch.

View RUO catalog →

Vial format · Laboratory Use Only

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Dermal & Cell-Culture Research

Copper peptides, matrixyl-type and expression-line peptides supplied as lyophilised vials for in vitro keratinocyte, fibroblast and 3D skin-model studies. Batch COA with HPLC purity and MS identity. Not supplied as cosmetic bulk raw material — these are research reagents, not INCI-grade ingredients.

View dermal research line →

Service · MOQ applies

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Custom Synthesis & OEM

Custom sequences from milligram to kilogram scale, private-label vialing, custom strengths and mixed kits. Suitable for CROs building assay panels and distributors needing their own label — with the same batch-level documentation as catalog items.

Discuss a custom project →

Most-requested items this quarter

Add items to your quote list and our sales team replies with pricing, lead time and shipping options within 24 hours.

⚠️ Research-use products: items marked “Research (RUO)” are sold for in vitro laboratory research only. They are not drugs, dietary supplements or cosmetics, and are not intended for human or veterinary use of any kind. Buyer must be a qualified professional or institution.

See full catalog →

Quality assurance

Documents that survive your audit

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Batch-specific COA
HPLC purity chromatogram, identity confirmation and test date for the exact batch you receive — not a generic template.
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Full analytical panel
HPLC, LC-MS identity, water content (Karl Fischer), residual solvents (GC) and microbial limits where applicable.
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Independent verification
Third-party laboratory testing available on request for any batch, with results published to a public verification portal.
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Regulatory documentation
MSDS, TDS, allergen statements, Halal/Kosher certificates (food line), heavy-metal and stability data on request.

📄 Sample documentation pack

COA — GHK-Cu (current batch, on request)Download ↓

HPLC chromatogram — Exendin-4Download ↓

MSDS — Acetyl Hexapeptide-8Download ↓

Halal & Kosher certificates (food line)Download ↓

Full quality & compliance page →

Who we sell to

Buyer qualification, not testimonial walls

We do not publish invented reviews. Every research order is checked against three criteria before it ships — and every customer can verify the documents themselves.

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Institutional buyer check

Research-line orders require a institutional or corporate email domain and a named lab, CRO or company. Private accounts are declined for RUO items.

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Documents you can verify

Every shipment carries the COA of the batch you receive, with HPLC trace, MS identity and test date. You can send any lot to an independent lab; we publish the result to a verification page.

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Reference customers on request

For contract and tender work we provide reference contacts from comparable accounts, with their permission — instead of anonymous five-star quotes on a website.

How ordering works

From RFQ to delivered goods in 4 steps

Submit RFQ

Add products to your quote list and submit the form — or email us directly with your spec sheet.

Quotation & COA review

Pricing, lead time and the COA of the current batch are sent within 24 hours.

Order & production

Pro-forma invoice, production or stock allocation, and QC release before dispatch.

Delivery & support

Tracked shipment from the hub nearest you, with technical support throughout shelf life.

FAQ

Questions procurement teams ask us

Do you provide a COA for the exact batch I receive?

Yes — every shipment includes a batch-specific COA with the HPLC chromatogram, purity value and test date for that batch. Generic brochures are not acceptable documentation and we don't use them.

Do you supply cosmetic-grade bulk raw material?

Not from stock. Our dermal peptides are supplied as lyophilised research vials for in vitro work, not as INCI-grade bulk powder. If your project needs cosmetic-grade bulk (typically 100 g – 5 kg), tell us the INCI name and use level and we will quote through a partner manufacturer — with full CoA, TDS and stability data, and a clear statement of which grade you are buying.

Are research peptides safe for human use?

No. Products in our RUO division are chemical reference materials for in vitro laboratory research only. They are not medicines, supplements or cosmetics, and must never be administered to humans or animals. We only trade with qualified institutions and professionals.

What are your payment terms?

Standard terms are 100% T/T against pro-forma invoice for first orders; net-30 terms are available after a trading history is established. We also accept L/C at sight for large food-line orders.

Do you offer custom peptide synthesis?

Yes — from milligram research quantities to kilogram commercial scale, with sequencing, modifications (amidation, acetylation, cyclization) and dedicated analytical packages. Send your sequence via the RFQ form.