Research peptides,
analytically verified.
Purity verified by HPLC & Mass Spec. COA with every product.
Intended for research purposes only. Not for human consumption.
Top 5 bestsellers
Most-ordered compounds. Every product HPLC verified with COA.
Verified. Every product.
Three checks before a single vial ships from Tulsa.
HPLC purity
Purity confirmed by high-performance liquid chromatography on every product.
Mass spec ID
ESI-MS or MALDI-TOF confirms molecular weight and peptide identity.
COA issued
Full Certificate of Analysis available for download — purity, identity, mass, storage.
US made + shipped
Synthesized, QC-tested, and packed in our Tulsa, OK facility. Never overseas.
Try it now: every compound we sell is independently lab-tested. Search any product — this is the same portal its certificates live in.
Shop by category
Compounds organized by research focus. Every product HPLC + mass spec verified.
Metabolic
Metabolic research peptides are the most closely watched compounds in current peptide science, and…
10 Shop category → Most PopularRecovery
Recovery research peptides are the compounds most often studied for cytoprotection, tissue signaling, and…
9 Shop category →Performance
Performance research peptides are the growth-hormone-axis compounds: the analogues and secretagogues laboratories use to…
8 Shop category →Cognitive & Longevity
Cognitive and longevity research peptides cover two research traditions that rarely appear in the…
8 Shop category →Dermal
Dermal research peptides are the compounds studied in skin, extracellular matrix, and inflammation signaling.…
5 Shop category →Aesthetic & Vitality
This category covers research compounds studied in melanocortin and neuroendocrine signaling, pathways distinct from…
3 Shop category →Supplies
Laboratory supplies for working with research peptides. Reconstitution is where a well-made compound is…
1 Shop category →Free research tools & references
The working references behind every preparation — free, no signup.
Peptide Calculator
Concentration, mcg per U-100 unit, and aliquot volume for any vial-and-diluent combination.
Open the calculator →How to Reconstitute
The step-by-step lab procedure: bacteriostatic water volumes, blend vials, and storage.
Read the guide →COA Portal
Read the full certificate of analysis for any product — before you order, not after.
Look up a COA →Testing Methods
How HPLC purity and mass-spec identity are actually run, and how to read the results.
See the methods →Why researchers choose Heartland
Every claim we make, verified and documented.
| Feature | Heartland Bio Labs |
|---|---|
| HPLC purity verified | ✓ |
| Mass spec ID confirmation | ✓ Every product |
| COA per product (downloadable) | ✓ Portal access |
| Made + shipped in the US | ✓ Tulsa, OK |
| Same-day shipping (orders by 2pm CT) | ✓ |
| Free shipping over $200 | ✓ |
| 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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Quality guarantee If anything's off, we replace it free or refund — full stop.
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