― TESTED · EVERY LOT

Premium research compounds. Built on precision.

Documented purity, independent analysis and full lot traceability — published before you order, not after. Made for research-focused buyers.

All compounds are strictly for LABORATORY RESEARCH USE ONLY. Not for human consumption.

99% Purity Guaranteed

99% Purity Guaranteed

Every batch verified

Shipment Protection

Shipment Protection

Every order fully covered

CoA with Every Batch

CoA with Every Batch

Third-party tested in America

Most-ordered compounds

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✓≥99%·Lot 497289
Research Use Only
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MT-2

Melanotan II · melanocortin analog
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AHK-Cu

Copper tripeptide
$39.99
✓≥99%·Lot 497289
Research Use Only
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Glutathione

Reduced glutathione (GSH)
$39.99
✓≥99%·Lot 497289
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KLOW

KPV · GHK-Cu · BPC-157 · TB-500 blend
$39.99
✓≥99%·Lot 497289
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GLOW

GHK-Cu - BPC-157 • TB-500 blend
$39.99
✓≥99%·Lot 497289
Research Use Only
Skin & Beauty

GHK-Cu

Copper tripeptide-1
$39.99

Quality you can verify, not just trust

Every batch is independently tested by accredited U.S. laboratories. We don't ask you to take our word for it — we give you the proof.
Purity Guaranteed
0 %
Quality Checks
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U.S. Verified
0 %

Verified Potency ✓ HPLC Analysis

Every vial is tested to confirm it contains exactly what the label says — down to the microgram.

Why it matters: No guessing games. You get the exact concentration you paid for, every single time.

Verified Purityy ✓ HPLC + Mass Spec

Reverse-phase HPLC confirms ≥99% purity and mass spectrometry confirms identity for every lot.

Why it matters: No fillers and no unknown byproducts — only the compound you ordered.

Stability Assured ✓ Cold-Chain QC

Compounds are lyophilized and handled cold-chain to preserve integrity from our lab to yours.

Why it matters: Your reference material arrives intact and research-ready.

Safety Screened ✓ Endotoxin Tested

Batches are screened so your in-vitro work starts from a clean, well-characterized baseline.

Why it matters: Fewer confounds, cleaner data.

Batch Consistency ✓ Lot-to-Lot QC

Every lot is held to the same specification, with a certificate of analysis documenting the result.

Why it matters: Reproducible inputs for reproducible research.

✓ Free COA included with every order

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Why choose Pepsynth Labs?

Consistent Availability

Core research peptides — including BPC-157, TB-500, and GLP analogs — are kept in stock and ship promptly, without backorder delays.

Volume Pricing

Tiered pricing lowers the per-vial cost as order quantities increase, supporting larger and ongoing research programs.

Cold-Chain Shipping

Cold-pack packaging maintains compound stability in transit, and every domestic shipment includes end-to-end tracking.

Dedicated Research Support

Our U.S.-based team provides knowledgeable assistance and reference resources to support every order.

Verified ≥99% Purity

Every batch is independently analyzed by U.S. laboratories via HPLC and mass spectrometry, with a certificate of analysis provided for each lot.

Shipment Protection

Every order includes complimentary shipment protection — lost, damaged, or stolen packages are reshipped at no additional cost.

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