7-Point US Lab Verified · Research Grade Only · HPLC · Mass Spec · Sterility · Endotoxin · Amino Acid · Moisture · Heavy Metals · Market-Beating Pricing · 7-Point US Lab Verified · Research Grade Only · HPLC · Mass Spec · Sterility · Endotoxin · Amino Acid · Moisture · Heavy Metals · Market-Beating Pricing ·
Research Peptides — Verified Standard

The Most
Tested
Peptides On
The Market.

Every compound passes a 7-point US laboratory panel before it reaches you. No exceptions. No shortcuts. Priced below the competition.

7×
Tests Per Batch
US
Certified Labs
100%
COAs Published
// 01 — PURITY
HPLC Verified
High-performance liquid chromatography confirms purity percentage on every single batch. You see the number, not just a claim.
// 02 — IDENTITY
Mass Spec Confirmed
Mass spectrometry verifies you're getting exactly what's on the label — not an analog, not a substitute.
// 03 — SAFETY
Endotoxin + Sterility
LAL endotoxin testing and sterility panels run on every batch. Heavy metals screened — critical for imported compounds.
Current Inventory
7× Verified
BPC-157
Body protection compound. Recovery and repair research compound.
$
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7× Verified
TB-500
Thymosin Beta-4 fragment. Tissue and mobility research.
$
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7× Verified
Tirzepatide
Dual GIP/GLP-1 receptor agonist. Metabolic research compound.
$
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7× Verified
Retatrutide
Triple receptor agonist. Advanced metabolic research.
$
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7× Verified
CJC-1295 / Ipamorelin
GHRH analog + selective secretagogue stack.
$
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7× Verified
Tesamorelin
Synthetic GHRH analog. Body composition research.
$
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7× Verified
GHK-Cu
Copper tripeptide. Regenerative and longevity research.
$
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All Products
⚠ All products sold strictly for in vitro research purposes only. Not for human consumption. Must be 18+ to purchase.
7× Verified
BPC-157
Body protection compound. One of the most widely researched recovery peptides available. Stable lyophilized powder.
$TBD
Coming Soon
7× Verified
TB-500
Thymosin Beta-4 synthetic fragment. Mobility and tissue research. Often stacked with BPC-157.
$TBD
Coming Soon
7× Verified
Tirzepatide
Dual GIP/GLP-1 receptor agonist. Premium grade. One of the most in-demand metabolic research compounds.
$TBD
Coming Soon
7× Verified
Retatrutide
Triple agonist targeting GLP-1, GIP, and glucagon receptors. Frontier metabolic research compound.
$TBD
Coming Soon
7× Verified
CJC-1295 / Ipamorelin
Classic GHRH/secretagogue research stack. CJC no-DAC variant. Sold as individual compounds.
$TBD
Coming Soon
7× Verified
Tesamorelin
Synthetic stabilized GHRH analog. Strong research profile for body composition studies.
$TBD
Coming Soon
7× Verified
GHK-Cu
Copper peptide with a well-documented research base. Longevity and regenerative biology applications.
$TBD
Coming Soon
Lab Results

Every batch of every compound we carry is tested across 7 independent analytical panels at US-certified laboratories before release. Full COAs are published here — no summaries, no selective disclosure.

This is the Zenith standard. If it doesn't pass all 7, it doesn't ship.

TEST 01
HPLC Purity
High-performance liquid chromatography confirms exact purity percentage. Industry standard, fully quantitative.
TEST 02
Mass Spectrometry
Confirms exact molecular identity. Eliminates analog substitution — you get what's on the label.
TEST 03
Amino Acid Analysis
Sequence verification at the amino acid level. Critical for complex peptides.
TEST 04
Endotoxin / LAL
Limulus amebocyte lysate test for bacterial endotoxin contamination.
TEST 05
Sterility
Microbial contamination panel. Bacteria, yeast, mold — all screened.
TEST 06
Moisture Content
Water content analysis ensures accurate dosing weight and long-term vial stability.
TEST 07
Heavy Metals
Full heavy metal screen. Especially critical for compounds sourced internationally. A test most vendors skip.
Compound Batch ID Date Lab Purity All 7 Tests COA
BPC-157 ZL-001 Pending Pending Coming Soon
TB-500 ZL-002 Pending Pending Coming Soon
Tirzepatide ZL-003 Pending Pending Coming Soon
Retatrutide ZL-004 Pending Pending Coming Soon
CJC-1295 / Ipa ZL-005 Pending Pending Coming Soon
Tesamorelin ZL-006 Pending Pending Coming Soon
GHK-Cu ZL-007 Pending Pending Coming Soon
Our Standard

Zenith Labs was built on a simple observation: the research peptide market rewards marketing over quality. Vendors sell on brand, not on proof. COAs get cherry-picked. Testing is minimal and opaque.

We built Zenith to change that. Every compound we carry passes 7 analytical tests at US-certified laboratories before it's listed for sale. Every COA is published in full. No exceptions, no summaries, no selective disclosure.

And we price below the market. Because rigorous QC and accessible pricing aren't mutually exclusive — they just require discipline.

01
Source Vetting
We evaluate manufacturers on production standards, consistency across multiple sample orders, and documentation quality before committing to any supply relationship.
02
7-Point Panel
HPLC, mass spectrometry, amino acid analysis, endotoxin, sterility, moisture content, and heavy metals. All seven. Every batch. No exceptions.
03
Full Disclosure
Every COA from every batch is published on this site. If a batch fails any test, it doesn't ship and we disclose that publicly. Trust is built on transparency.
04
Market Pricing
We believe the most tested compounds should also be the most accessible. We operate lean to beat market pricing on every product we carry — without cutting corners anywhere else.
FAQ
What does "research use only" mean? +
All products sold by Zenith Labs are intended strictly for in vitro laboratory research purposes. They are not approved by the FDA for human use, are not dietary supplements, and are not sold for any therapeutic application. By purchasing, you affirm that you are a qualified researcher and will use the compounds accordingly.
What labs do you use for testing? +
We use US-certified analytical laboratories for all 7 tests in our standard panel. Lab names and COA documents are published on our Lab Results page alongside every batch entry. We do not use overseas-only testing — all results are verifiable from US-accredited facilities.
Why do you test for heavy metals when others don't? +
Most compounds in this space are manufactured internationally. Heavy metal contamination — lead, arsenic, mercury, cadmium — is a real risk in the supply chain and is the test most vendors skip because of cost. We include it in our standard panel because we consider it non-negotiable.
What payment methods do you accept? +
We accept cryptocurrency (BTC, USDC), Zelle, and major credit/debit cards through our secure high-risk payment processor. Crypto orders receive a discount. Payment details are available at checkout.
How is shipping handled? +
All orders ship discreetly in unmarked packaging. Compounds are shipped as lyophilized powder in sealed vials. Domestic US shipping only. Tracking provided on all orders.
What if a batch fails testing? +
It doesn't ship. We publicly disclose failed batches on our Lab Results page. This has cost us inventory — we consider it a cost of doing business correctly. If a product you ordered is affected by a batch failure, you are notified immediately and offered a full refund or replacement.
How do you price below market with more testing? +
We operate with minimal overhead, batch our testing efficiently, and negotiate volume pricing with our lab partners. We don't spend on expensive ad channels or brand markup. The savings go to pricing, not margins.

Get In Touch

Questions about products, orders, or our testing methodology — we respond to every message. Typically within 24 hours.

Email
contact@zenithlabs.com
Response
Within 24 hours
Orders
Order inquiries include your order ID