Representative records, refreshed periodically
Published COAs show representative factory batches and may not be the latest available. For a current quote or shipment, our sales team can confirm the applicable lot and provide its COA.
Research Use Only · B2B supply
LyoPep research peptides
Built for laboratories, biotechnology teams, procurement professionals and independent buyers planning wholesale or OEM projects. Find the molecule, specification, volume and documentation path you need, then request volume pricing, technical review or the latest available released-batch COA.
Worldwide B2B Orders Welcome
We accept Research Use Only B2B orders worldwide. Courier availability and delivery options vary by destination; contact sales to confirm service before confirming your order.
Purity ≥99.5% optionsReleased-batch COA on requestIdentity and content evidence
98 catalog records214 SKU variants673 literature records24 h target first response
Batch qualification
Decisions start with the batch, not the brochure.
Ask for the latest released-batch analytical packet before qualification. Available documentation depends on molecule and lot.
01Define identity and supplied form02Review method-specific results03Confirm released-lot documentation
Batch COA library
Recent factory batch COAs for popular products
Review representative factory release records for frequently requested products. For the COA tied to a quote or shipment, ask sales to confirm the current lot.
Independent testing, arranged on request
Third-party reports are not routinely published. If independent verification is required, we can agree the laboratory, method, acceptance criteria and remedy before testing. If the agreed specification is not met, an appropriate resolution—including a refund where applicable—can be discussed under the agreed terms. Unless otherwise agreed in writing, the buyer pays the cost of this optional testing.
Help reviewing your COA
Need help reading a factory COA or third-party report? Our sales team can clarify test items, specifications and how the results relate to the lot under discussion.
Featured supply
High-interest products, ready for batch review
Explore frequently requested research materials with clearly defined SKU options and lot-specific documentation support.
Metabolic and incretin research
30 mL/vialRetatrutide
GIP / GLP-1 / glucagon tri-agonist · 39-mer metabolic research peptide
5–60 mg8 SKUs
View product
Laboratory ancillaries
Bacteriostatic Water
Benzyl-alcohol-preserved aqueous laboratory diluent · nominal composition must be verified per lot
3 / 10 / 30 mL10 vials
View product
Repair and regenerative research
GHK-Cu
Copper(II)-complexed GHK tripeptide · supplied form and copper stoichiometry are procurement-critical
50 / 100 mgFactory batch COA
View product
Catalog intelligence
Best-selling products
Metabolic and incretin research
Retatrutide
GIP / GLP-1 / glucagon tri-agonist · 39-mer metabolic research peptide
- Purity
- Target ≥ 99.0% · Batch COA
- CAS
- 2381089-83-2
Latest batch COA available on request
Metabolic and incretin research
Tirzepatide
GIP / GLP-1 dual receptor agonist · 39-mer metabolic research peptide
- Purity
- Target ≥ 99.0% · Batch COA
- CAS
- 2023788-19-2
Latest batch COA available on request
Metabolic and incretin research
Semaglutide
Lipidated GLP-1 analog · analytical and metabolic research reagent
- Purity
- Target ≥ 99.0% · Batch COA
- CAS
- 910463-68-2
Latest batch COA available on request
Laboratory ancillaries
Bacteriostatic Water
Benzyl-alcohol-preserved aqueous laboratory diluent · nominal composition must be verified per lot
- Purity
- Component-specific · Batch COA
- CAS
- 7732-18-5
Latest batch COA available on request
Repair and regenerative research
BPC-157
Synthetic gastric pentadecapeptide research reference · preclinical evidence predominates
- Purity
- Target ≥ 99.0% · Batch COA
- CAS
- 137525-51-0
Latest batch COA available on request
Repair and regenerative research
GHK-Cu
Copper(II)-complexed GHK tripeptide · supplied form and copper stoichiometry are procurement-critical
- Purity
- Lot-specific · Batch COA
- CAS
- 89030-95-5
Latest batch COA available on request
Metabolic and incretin research
Cagrilintide
Long-acting lipidated amylin analogue research reference
- Purity
- Lot-specific · Batch COA
- CAS
- 1415456-99-3
Latest batch COA available on request
Repair and regenerative research
TB-500
N-acetylated LKKTETQ thymosin-β4 fragment research reference
- Purity
- Lot-specific · Batch COA
- CAS
- 885340-08-9
Latest batch COA available on request
Neurocognitive research
Selank
Tuftsin-related heptapeptide · neurobiology research reagent
- Purity
- Target ≥ 99.0% · Batch COA
- CAS
- 129954-34-3
Latest batch COA available on request
Growth-hormone axis research
Somatropin (HGH 191 aa)
Recombinant 191-residue human growth hormone research protein · not a licensed finished medicine
- Purity
- Multi-attribute · Batch COA
- CAS
- 12629-01-5
Latest batch COA available on request
Mitochondrial research
MOTS-c (Human)
Native human 16-residue mitochondrial-derived research peptide · evidence remains predominantly preclinical
- Purity
- Lot-specific · Batch COA
- CAS
- 1627580-64-6
Latest batch COA available on request
Growth-hormone axis research
Tesamorelin
N-terminally acylated GHRH analog · active ingredient in approved HIV-lipodystrophy products
- Purity
- Target ≥ 99.0% · Batch COA
- CAS
- 218949-48-5
Latest batch COA available on request
Catalog taxonomy
Research categories
Other research materials17 recordsGrowth-hormone axis research16 recordsMetabolic and incretin research10 recordsNeurocognitive research10 recordsKhavinson bioregulators8 recordsMitochondrial research8 recordsRepair and regenerative research8 recordsHormonal research7 recordsLaboratory ancillaries6 recordsImmune signaling research5 recordsLongevity research3 records
Quality by question
A practical qualification path
Identity, purity and content answer different questions. We help buyers define the right test panel before the quote is finalized.
Identity: align the method with the molecule and supplied formPurity: method and integration matterStability: storage and transit are separate risks
Explore quality workflow 
Wholesale & OEM program
Wholesale and OEM, from molecule to market-ready pack
Independent buyers, laboratories and procurement teams can request volume pricing, custom vial fills, labels, cartons, inserts and packaging design with documented review gates.
Custom synthesis and fillLabel, carton and insert productionArtwork and batch-document review gates
Plan a wholesale or OEM brief Evidence before order
Buyer intelligence
How to read a peptide COA
Buyer-focused guidance for defining evidence, questions and release criteria before an RFQ.
Read the decision guidePurity is not peptide content
Buyer-focused guidance for defining evidence, questions and release criteria before an RFQ.
Read the decision guideAmbient or cold-chain shipping?
Buyer-focused guidance for defining evidence, questions and release criteria before an RFQ.
Read the decision guide