HPLC + mass-spec on every batch
Each lot is verified at independent third-party labs by high-performance liquid chromatography and mass spectrometry. Anything under 99% is destroyed — never shelved.
99%+Min. assay purity
99%+ purity · COA per batchPrecision peptides
Precision peptides
for serious research.
Independently lab-tested research peptides, cold-chain shipped from the United States. Built for laboratories that don't have time to second-guess their inputs.
- 99%+
- HPLC verified
- USA
- Shipped & sourced
- 24h
- Order fulfillment
3rd-party lab tested•
99%+ purity•
US-based shipping•
Discreet packaging•
Cold-chain handled•
COA per batch•
Free shipping over $150•
Research-grade only•
3rd-party lab tested•
99%+ purity•
US-based shipping•
Discreet packaging•
Cold-chain handled•
COA per batch•
Free shipping over $150•
Research-grade only•
Quality Assurance & Transparency
Independent Quality Verification
BPC-1571 of 8
Third-Party Tested
All products are produced in controlled laboratory environments and undergo third-party analytical testing to verify identity and purity prior to release.
Batch-Level Records
We maintain batch-level records and work with accredited testing partners to ensure consistency across production runs. Customers may request supporting documentation or conduct independent analysis at their discretion.
Verified Customer Feedback
Feedback from verified purchasers is available at the bottom of our FAQ page, reflecting real-world experiences with our research materials and service standards.
Products are intended strictly for laboratory research purposes and are not approved for human or veterinary use.
Why labs choose KuroAminos
Reproducibility, by design.
Sloppy reagents kill papers. We built KuroAminos to remove input-variability from your research stack — full stop.
COA per batch — never per product
Lot-specific certificates of analysis are linked to every order and published openly. You verify the exact vial in your freezer, not a generic spec sheet.
Lot-lockedCOA tied to batch
Cold-chain from synthesis to shipping
Lyophilized in temperature-controlled fill rooms, stored at 2–8 °C, and shipped insulated. Reagent integrity is preserved end-to-end so your studies stay reproducible.
2–8 °CContinuous chain
Research library
Get the KuroAminos Research Handbook — free.
Mechanism, dosing, reconstitution & published-literature citations for every peptide in our catalog. PDF download below — no inbox sign-up required, but join the list if you want fresh editions.
+ 10% off your first vial — code KURO
Included in the library
- Free
KuroAminos Research Handbook
Reconstitution math, syringe tables, storage chemistry, and full literature monographs for every peptide we stock.
- Free
BPC-157 & TB-500 research primer
Published-literature roundup on soft-tissue and connective repair models — included in the handbook.
- Free
GLP analog comparison sheet
Side-by-side of Semaglutide, Tirzepatide & GLP-3RT receptor binding profiles — included in the handbook.
Lab favorites
Bestsellers, in stock now.
The peptides our research customers reorder month after month — fully assayed, ready for cold-chain dispatch.
10 mgBestseller
BPC-157
Body Protection Compound — 15-amino-acid gastric peptide.
- Purity
- >99%
- Form
- Lyophilized
$49.99
per vial
5 mgBestseller
TB-500 (Thymosin β-4 fragment)
Synthetic fragment of Thymosin Beta-4 — actin-binding repair peptide.
- Purity
- >99%
- Form
- Lyophilized
$24.99
per vial
50 mgBestseller
GHK-Cu
Copper-binding tripeptide — collagen and skin research.
- Purity
- >99%
- Form
- Lyophilized
$24.99
per vial
5 mgBestseller
CJC-1295 with DAC
Long-acting GHRH analog with Drug Affinity Complex.
- Purity
- >99%
- Form
- Lyophilized
$49.99
per vial
10 mgBestseller
Semaglutide
Long-acting GLP-1 receptor agonist for metabolic research.
- Purity
- >99%
- Form
- Lyophilized
$69.99
per vial
10 mgBestseller
Tirzepatide
Dual GIP / GLP-1 receptor co-agonist.
- Purity
- >99%
- Form
- Lyophilized
$69.99
per vial
10 mgBestseller33% off
GLP-3RT
Triple GIP / GLP-1 / Glucagon receptor agonist.
- Purity
- >99%
- Form
- Lyophilized
$69.99$104.99
per vialStop second-guessing your reagents.
Lab-tested, lot-locked, cold-chain peptides. Use code KURO for 10% off your first order.