Verified peptides.
For the protocols you're already running.
≥99% HPLC per lot. Ships from Texas.
Verified Compounds
Every peptide undergoes third-party HPLC and mass spectrometry analysis. Certificates of Analysis are published for each batch so you can verify purity before you order.
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Tested & Shipped in the USA
Synthesized in cGMP-compliant US laboratories with full toxicity and heavy metal panel testing on every batch. Same-day fulfillment with tracking and temperature-appropriate packaging.
View COAsFor the researcher running:
A first protocol
Burned by a mystery vial before? Start with a vendor that posts COAs publicly, has a Texas address, and answers email within a day.
A repeat protocol
Same compound, same source. If a batch doesn't pass spec, we delay restock — we don't ship the next-best thing.
A multi-compound stack
No mystery vials in your stack. Every compound comes from US-synthesized stock we've vetted — not a mix of overseas drop-shippers.
What we don't do
What we won't do.
- We won't ship a compound that hasn't been third-party verified.
- We won't restock a compound until the next batch passes ≥99% HPLC.
- We won't carry the compound-of-the-month we can't actually verify.
- We won't switch suppliers behind your back.
Four research programs.
15 compounds, not 200. We only carry what we can verify.
Metabolic Research
GLP-1 and growth-hormone-axis research compounds — Retatrutide and Tirzepatide (10mg + 30mg vials), CJC-1295 / Ipamorelin.
Explore MetabolicCellular Renewal
Copper peptides, α-MSH fragments, mitochondrial-derived peptides, and pineal compounds — GHK-Cu, KPV, Epitalon, MOTS-c.
Explore RenewalTissue Repair
Tissue-repair blends and vasoactive research compounds — the Wolverine stack (BPC-157 + TB-500) for healing-pathway research.
Explore RepairNootropic Research
Heritage Russian neuropeptide studied for cognitive and stress-response pathways — Semax 10mg nasal spray. 99%+ verified purity per batch.
Explore NootropicFrom order to bench.
Order from the catalog
Browse the curated research catalog. Every product page lists the active lot's COA, chromatogram, and storage requirements before you order.
US fulfillment
Orders placed before 2pm EST ship the same day from our US facility. Cold-chain packaging for thermolabile compounds. Tracking by email.
Documentation
COA, chromatogram, and lot reference included with every shipment. Technical questions answered by email.
Sample COA · CJC-1295 · Lot CJ-1118
Verified before it leaves the shelf.
Every batch is independently tested by HPLC and confirmed by mass spectrometry. The full Certificate of Analysis is bound to the lot number on your vial and shipped with your order.
- Purity verified by independent HPLC, every lot.
- Identity confirmed by mass spectrometry.
- Lot reference traceable from synthesis to your door.
3+ of any compound, save 10% · 6+ save 15% · 12+ save 20%
Discounts applied automatically at checkout. No coupon required.
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CJC-1295 · Ipamorelin 10+10mg — Research Peptide Blend
Wolverine 10+10mg — Research Peptide Blend
KLOW 10+10+50+10mg — Research Peptide Blend
Semax 10mg — Research Peptide
Fewer compounds, verified harder.
We carry 15 compounds, not 200, because every batch is analyzed by an independent lab using HPLC and mass spectrometry before it leaves the shelf. The full Certificate of Analysis is published with your order — transparency is not optional when purity matters.
Frequently Asked Questions
What are research peptides?
Research peptides are short-chain synthetic amino acid sequences used in laboratory and scientific research settings. They are studied across a wide range of disciplines, including metabolic function, tissue repair, cognitive performance, and cellular aging. Merit Peptides supplies a curated catalog of specialty research compounds for qualified researchers. All products are sold strictly for research purposes and are not intended for human consumption.
How do you ensure purity?
Every batch undergoes third-party testing using high-performance liquid chromatography (HPLC) and mass spectrometry to confirm identity and purity. We also screen for endotoxins and microbial contamination. Results are documented in a Certificate of Analysis (COA) that is published on our website, so researchers can review exact purity data before ordering.
What shipping options are available?
We offer free shipping on all orders over $100. Orders placed before 2pm EST are fulfilled the same day with full tracking provided via email. Temperature-sensitive compounds are shipped with cold-chain packaging to maintain stability during transit. All shipments originate from our US-based facility for fast, reliable delivery.
Do you offer volume discounts?
Yes. We offer tiered volume pricing to support ongoing research programs. Save 10% when you order 3 or more of any compound, 15% on orders of 6 or more, and 20% on orders of 12 or more. Discounts are applied automatically at checkout with no coupon code required.
Where are your peptides manufactured?
All Merit Peptides compounds are synthesized and formulated in cGMP-compliant US laboratories. Our manufacturing partners follow current Good Manufacturing Practice (cGMP) guidelines to ensure consistency and quality across every production run. Each batch is independently tested before release.
How should I store peptides?
Lyophilized (freeze-dried) peptides should be stored in a cool, dry environment away from direct sunlight. For long-term storage, a freezer at -20°C is ideal. Once reconstituted, peptides should be refrigerated at 2–8°C and used within the timeframe specified on the product page. Avoid repeated freeze-thaw cycles, as this can degrade peptide integrity over time.