99%+ Purity
Lab-verified
Third-party tested by HPLC and mass spectrometry at the source lab, with certificates of analysis available on request. For laboratory research use only.
LY3437943
Our best-selling triple-agonist research peptide — GIP, GLP-1 and glucagon receptor activity in a single vial. Synthesized by solid-phase synthesis and verified to ≥99% purity by HPLC and mass spectrometry at the source lab, with the certificate of analysis available on request.
The Research Catalog
60 research compounds across 9 categories — each synthesized to analytical standards and verified by HPLC and mass spectrometry at the source lab.
Best Sellers
8 products
GLP-1 & Metabolic
4 products
Research Peptides
25 products
Peptide Blends
6 products
Nasal Sprays
3 products
Dissolving Strips
3 products
Bioregulators
7 products
Research Bundles
12 products
A standard you can verify.
Every lot is characterized by HPLC and mass spectrometry at the source lab before release. Ask for the certificate of analysis for any lot you order.
- 01HPLC purityEvery lot assayed against a 99% purity specification at the source lab before release.
- 02Mass-spec identityMolecular weight confirmed against the reference for each compound.
- 03Lot-matched COAA Certificate of Analysis tied to the lot number on your vial, on request.
- 04U.S. sourcedSupplied, tested and shipped from a U.S. lab.
What 99% pure doesn't tell you.
Purity testing measures one thing. We test for the four things it can't see.
Every peptide supplier publishes a purity number. But HPLC and mass spectrometry — the tests behind that number — were never designed to detect contamination. They measure the molecule, not what's around it. A peptide can test 99.9% pure and still contain bacterial endotoxins, heavy metals, or microbial growth. The chromatogram won't show it. Endotoxin, sterility, and heavy-metal testing are available on request.
Toxic fragments left behind by dead bacteria.
Heat-stable. Survive sterilization. Biologically active on their own.
HPLC and mass spec measure chemistry. Endotoxins are biological remnants — invisible to both. A vial can be 99% pure and still loaded with them.
Endotoxins are biologically active. They trigger immune responses, inflammation, and cytokine release on their own — corrupting research data before the experiment begins.
The absence of living microbial contamination.
Available on request. Not assumed from a clean chromatogram.
Purity tests don’t culture for bacteria, fungi, or yeast. Live contamination can grow in a vial that "passed" purity testing.
Microbial growth introduces unknown variables into every experiment. Sterility testing against USP standards is available on request.
Lead, arsenic, mercury, and cadmium introduced during synthesis.
Inorganic. Invisible to HPLC and mass spec. Detected only by ICP-MS.
Heavy metals are inorganic. HPLC and mass spec are blind to them entirely. They require a separate test (ICP-MS) most suppliers skip.
Heavy metals accumulate in biological tissue and produce confounding effects in long-term studies. ICP-MS heavy-metal screening is available on request.
Verification that every batch matches the last.
Multi-sample. Reference-tested. Reproducibility, audited.
Spot-checking one vial per run is industry standard. We pull multiple samples per batch and test against the same reference every time.
Reproducibility is the foundation of legitimate research. If batches drift, your data drifts with them.
Purity is the floor. Not the ceiling.
Find Your Compound
Not sure where to start? Explore the catalog by the pathway you're researching.
Bestselling Compounds
The research peptides our customers reorder most — led by LY3437943, LY3298176 and NN9535.
Synthesized, tested & shipped in the U.S.A.
Homegrown Peptides is built on documented quality control — produced domestically, tested before release, and fulfilled within 1 business day from our own facility. When you order, you get the analytical paperwork to match.
The Standard in Research-Grade Peptides
Six commitments. Independently verified. Every one backed by a number, not a claim.
Featured Research Bundles
Curated multi-compound stacks — combined at a saving versus buying each vial individually. A certificate of analysis is available on request for each component.
Certificates of Analysis & Safety Data
Every compound is tested for identity and purity at the source lab. Certificates of analysis and safety data sheets are available on request. Independent third-party confirmation is available on request.
HG-RTA-3
HG-SEM-1
HG-TRZ-2
BPC-157
GHK-Cu (Copper Peptide)
IPAMORELIN
KISSPEPTIN-10
L-GLUTATHIONE
MOTS-C
NAD+
P-21
SS-31
HG-TESA
THYMOSIN ALPHA-1
BPC-157 + TB-500 (Wolverine Blend)
CJC-1295 (NO DAC) + GHRP-6
CJC-1295 (NO DAC) + IPAMORELIN
SELANK NASAL SPRAY
SEMAX NASAL SPRAY
Selank + Semax Dissolving Strips
A Standard You Can Verify
We publish the proof. Every product is backed by analytical testing and lot-level documentation — no guesswork, no black boxes.
Analytical Purity
≥99% purity verified by HPLC and mass spectrometry. Each lot is characterized before release so your assays start from a known baseline.
COA on Request
A certificate of analysis documents identity, purity, and analytical results, available on request for the lot you receive.
U.S. Manufacturing
Produced in the United States under documented quality control, then tested before any vial leaves the facility. Ships within 1 business day, domestic.
From the Research Desk
Testing, handling and compound science, written for the bench. No hype, sources cited.
Frequently Asked Questions
Are these products third-party tested?
Yes. Every lot is tested for identity and purity at the source lab by HPLC and mass spectrometry against a ≥99% purity specification. A certificate of analysis for your lot is available on request.
What does 'Research Use Only' mean?
All products are supplied strictly for laboratory and research use only (RUO). They are not drugs, foods, supplements, or cosmetics, are not approved by the FDA, and are not intended to diagnose, treat, cure, or prevent any disease, or for human or veterinary consumption.
How fast do orders ship?
Orders ship within 1 business day from our U.S. fulfillment center, in protective packaging with tracking provided. Choose 2-Day shipping (included) or Overnight (+$250). Free shipping on orders $1,000 and over; a flat $12.99 applies below that.
How should these compounds be stored?
Store lyophilized material at -20°C, protected from light and moisture. Once reconstituted with bacteriostatic water for laboratory titration, refrigerate at 2–8°C. Always consult the product COA for compound-specific handling.
Do you provide a Certificate of Analysis?
Yes. Contact our team with your lot number and we will send the certificate of analysis for that lot, documenting identity, purity, and analytical results.