USA-made research peptides · ≥99% HPLC purity
Peptide Sciences: Research Peptides for Sale in the USA
Peptide Sciences supplies high-purity research peptides, including BPC-157, TB-500, semaglutide, tirzepatide and 160+ compounds. Every batch is tested by HPLC and mass spectrometry and ships with its Certificate of Analysis.
Research use only: All Peptide Sciences products are for in-vitro laboratory research. They are not for human or veterinary use.
Shop Research Peptides by Category
Find the right compound for your study. The Peptide Sciences catalog is organised by research area, and every category page explains the mechanisms involved and links to related compounds.
Healing Peptides
BPC-157, TB-500, LL-37 and ARA-290 for tissue-repair research.
Weight Loss Peptides
Semaglutide, tirzepatide, retatrutide and cagrilintide.
Growth Hormone Peptides
CJC-1295, ipamorelin, sermorelin, tesamorelin and IGF-1.
Peptide Blends
Pre-mixed BPC-157/TB-500, GLOW, KLOW and GH blends.
Anti-Aging Peptides
Epithalon, NAD+, MOTS-c, SS-31 and FOXO4-DRI.
Nootropic Peptides
Semax, Selank, Dihexa, P21 and FGL-S.
Copper & Collagen Peptides
GHK-Cu vials, capsules and topical powders.
Peptide Capsules
Pre-measured oral formats for gut and metabolic research.
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Best-Selling Research Peptides
The compounds researchers order most often from Peptide Sciences, each supplied lyophilised with a lot-specific Certificate of Analysis.
Why Researchers Choose Peptide Sciences
Reproducible research starts with material you can trust. These are the standards behind every Peptide Sciences order.
Verified Purity
Every lot is tested by reverse-phase HPLC and must reach at least 99% purity before release.
Full Lab Documentation
Each order ships with its batch Certificate of Analysis, including chromatogram and mass-spec identity data.
Made and Shipped in the USA
Our peptides are produced and dispatched in the United States, with fast, discreet delivery.
Extensive Catalog
Over 160 research peptides, blends, capsules and topical compounds across 15 research categories.
The Peptide Sciences Quality Process
From synthesis to your laboratory door, every batch follows the same four-step process.
Synthesis
Peptides are built by solid-phase peptide synthesis (SPPS) for precise sequence control.
Purification & HPLC
Reverse-phase HPLC purifies each batch and confirms purity at ≥99%.
Mass Spec Identity
Mass spectrometry confirms the molecular weight matches the theoretical sequence.
Lyophilise & Ship
Vials are freeze-dried, sealed and shipped in insulated packaging with the batch COA.
About Peptide Sciences
Peptide Sciences is a US-based supplier of research peptides for in-vitro and preclinical laboratory studies. Our catalog spans the most widely studied compounds in modern peptide research, from repair peptides such as BPC-157 5mg and TB-500 to incretin analogues like semaglutide, tirzepatide and retatrutide. Every product is supplied with transparent analytical data, so researchers know exactly what is in each vial.
Research Peptides for Every Field of Study
Endocrinology labs use our growth hormone peptides, including CJC-1295, ipamorelin and tesamorelin, to study the GH/IGF-1 axis. Ageing researchers work with anti-aging peptides such as Epithalon, MOTS-c and NAD+. Neuroscience teams rely on nootropic peptides such as Semax and Selank, while skin-biology and formulation scientists choose GHK-Cu and other cosmetic peptides.
Why Purity Matters in Peptide Research
Impurities such as truncated sequences, deletion peptides or residual solvents can change experimental outcomes and make results impossible to reproduce. That is why Peptide Sciences publishes HPLC and mass-spectrometry data for every lot and holds each batch to a minimum 99% purity specification. Consistent quality between lots lets researchers compare data across experiments with confidence.
Ordering from Peptide Sciences
Browse the full research peptide catalog, use the search icon to find a specific compound, or explore by category. For background reading, visit the Peptide Sciences research blog, starting with our complete guide to research peptides, BPC-157 vs TB-500, semaglutide vs tirzepatide vs retatrutide and how to store peptides. Orders ship quickly from the USA in discreet, temperature-protected packaging. Questions about a product or COA? Contact our team or learn more about Peptide Sciences. All products are intended strictly for laboratory research use by qualified professionals.
Peptide Sciences FAQ
What is Peptide Sciences?
Peptide Sciences is a USA-based supplier of high-purity research peptides for in-vitro and preclinical laboratory research. We offer more than 160 compounds, including BPC-157, TB-500, semaglutide, tirzepatide, ipamorelin and GHK-Cu, each with a batch-specific Certificate of Analysis.
How pure are Peptide Sciences peptides?
Every batch is purified and tested by reverse-phase HPLC to a minimum of 99% purity, and its identity is confirmed by mass spectrometry. The results are documented in the Certificate of Analysis supplied with your order.
Are these peptides for human use?
No. All Peptide Sciences products are sold strictly for laboratory research and development. They are not drugs, foods, supplements or cosmetics, and are not intended for human or veterinary use.
How are research peptides shipped and stored?
Peptides are supplied lyophilised (freeze-dried) in sealed vials and shipped from the USA in insulated, discreet packaging. On arrival, store vials refrigerated or frozen and protected from light, following the storage notes on the product page and COA.
Where can I find the Certificate of Analysis?
A lot-matched COA ships with every order, showing HPLC purity and mass-spectrometry identity results. If you need a copy before ordering, contact our team with the product name.
Which Peptide Sciences products are most popular?
Our best sellers include BPC-157, TB-500, the BPC-157 + TB-500 blend, tirzepatide, semaglutide, retatrutide, CJC-1295 + ipamorelin and GHK-Cu. Browse the healing, weight loss and growth hormone categories to compare formats and sizes.
Start Your Research with Peptide Sciences
High-purity peptides, full lab documentation and fast US shipping, all in one place.
For laboratory research use only. Not for human or veterinary consumption. These products have not been evaluated by the FDA and are not intended to diagnose, treat, cure or prevent any disease. Purchasers must be 21 or older.