Research peptides,
analytically verified.
≥99% Purity verified by HPLC & Mass Spec. COA with every lot.
Intended for research purposes only. Not for human consumption.
Top 5 bestsellers
Most-ordered compounds. Every lot HPLC verified with COA.
Shop by category
Compounds organized by research focus. Every lot HPLC + mass spec verified.
Structural Peptide Research
BPC-157, TB-500, GHK-Cu, KPV & combos.
Shop category →Endocrine Peptide Research
CJC-1295, Ipamorelin, Tesamorelin & more.
Shop category → Most PopularMetabolic Peptide Research
Semaglutide, Tirzepatide, Retatrutide, AOD-9604.
Shop category →Cognitive & Cellular Peptide Research
Semax, Adamax, MOTS-c, NAD+.
Shop category →Dermal Peptide Research
GHK-Cu, Glutathione.
Shop category →Specialty Peptide Research
PT-141, MT-2, Kisspeptin, Oxytocin.
Shop category →Lab Research Supplies
Bacteriostatic water for compound reconstitution.
Shop category →Verified. Every lot.
Three checks before a single vial ships from Tulsa.
HPLC purity
≥99% purity confirmed by high-performance liquid chromatography on every lot.
Mass spec ID
ESI-MS or MALDI-TOF confirms molecular weight and peptide identity.
COA issued
Full Certificate of Analysis available for download — purity, lot, mass, storage.
US made + shipped
Synthesized, QC-tested, and packed in our Tulsa, OK facility. Never overseas.
Download a real COA from Lot #HB-2026-0812.
Download sample PDF →Why researchers choose Heartland
Every claim we make, verified and documented.
| Feature | Heartland Bio Labs |
|---|---|
| ≥99% HPLC purity verified | ✓ |
| Mass spec ID confirmation | ✓ Every lot |
| COA per lot (downloadable) | ✓ Portal access |
| Made + shipped in the US | ✓ Tulsa, OK |
| Same-day shipping (orders by 2pm CT) | ✓ |
| Free shipping over $200 | ✓ |
| Lot-quality guarantee | ✓ Free replacement |
| Real phone support | ✓ (405) 814-0022 |
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Same-day shipping Order by 2pm CT, ships from Tulsa today.
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Real phone support (405) 814-0022 — a real person answers.
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Lot-quality guarantee If anything's off, we replace it free or refund — full stop.
Refer a colleague. Both get $25.
Share Heartland with another researcher. When they place their first order, you each get $25 in lab credit toward your next purchase.
Plus: every order earns Lab Credit toward future research.