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Lab-tested compounds for precise research.

USA-synthesized peptides with ≥99% purity, verified by independent third-party laboratories. Use code: BOGO50 for 50% off your second item.

Third-party tested
Same-day shipping
COA included
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Semaglutide
GLP-1

GLP-1SG

High-purity GLP-1 receptor agonist for metabolic research applications.

The Research Peptides Lab Guarantee

We don't compromise on quality. Every product meets the highest standards.

99% Purity Guaranteed

Or your money back

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All batches independently tested via HPLC & MS to confirm ≥99% purity before shipping.

Same Day Fulfillment

Weekdays before 2PM EST

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Orders placed before 2PM EST Mon–Fri are packed and shipped the same business day.

CoA with Every Batch

Third Party tested in America

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Every batch ships with a Certificate of Analysis from a US-based independent lab.

Shipping Protection

Lost or damaged? We've got you

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All orders include shipping protection. Lost or damaged? We'll reship at no cost.
4.5| Trustpilot
4,500+
Orders Shipped
99%+
Purity Verified
USA
Synthesized
24h
Avg. Ship Time
FEATURED PRODUCTS

Popular peptides

Our most requested research compounds. Each product includes third-party testing documentation and batch-specific certificates.

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What scientists are saying

"From ordering to delivery, everything was smooth and transparent. The peptides arrived well-packaged, clearly labeled, and exactly as described."

Awwad Gohar
Verified Customer

"I've had a great experience with this peptide company from start to finish. Ordering was straightforward, shipping was fast and discreet."

Vineet Kumar
Very helpful and responsive team

"I ordered from Research Peptides Lab and the experience was smooth from start to finish. Delivery was fast, everything arrived well packaged."

Nick Nunez
Verified Customer

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The Research Standard

Every peptide meets rigorous standards demanded by top research institutions

Synthesis & Verification

Controlled lab synthesis with validated reference materials

HPLC & MS Testing

Independent labs confirm ≥99% purity via advanced testing

Batch-Specific COAs

Full transparency with published test results

Cold-Chain Logistics

Temperature-controlled from lab to destination

Independent verification • Cold-chain handling • Batch-level documentation
Third-Party Verified
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Batch-Level COAs
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For qualified laboratory and R&D use only. Not for human consumption. Purchases restricted to individuals 21+.
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