Reliable
Source

We Partner With Trusted U.S. Peptide Suppliers and Validate Every Batch With Third-Party Testing No Resellers, No Guess-work. Just Rigorously Tested, Research-Grade Peptides - Ready to Ship.

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The Most

Born from
Frustration. Built

Consistent, high-purity RUO peptides are surprisingly difficult to find. We were tired of peptide suppliers with vague sourcing, weak testing, and inconsistent quality. Proliven Labs was created as the solution: a curated source of high-purity peptides, independently verified and transparently labeled.

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for Researchers

Every Batch Third-party Tested
Every Label Transparent
Every Order Personal

Every product is sourced in small batches. Every pep- tide is tested by an independent U.S. lab. Every label tells the truth. That's how we protect your research.

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Why Proliven

Trusted Peptide Sourcing

We only work with U.S.-based peptide suppliers known for exceptional quality and reliability — not random drop-shippers or overseas brokers. We offer collagen peptides, vital proteins collagen peptides, and advanced biotech peptides.
Researchers also study peptides for weight loss, muscle growth, and skin applications.

Third-Party Tested

Every peptide we sell comes with a full Certificate of Analysis (COA) from an independent U.S. lab. You can verify purity, identity, and consistency — before it ever ships. From collagen peptides to vital proteins collagen peptides, we offer trusted options. Enjoy peptides for weight loss, muscle growth, skin, and proven collagen peptides benefits.

Small Batches. Big Control.

We don’t mass-produce. Small-batch runs give us tighter quality control, better traceability, and more reliable consistency — every time.

Our collagen peptides and vital proteins collagen peptides deliver benefits for weight loss, muscle growth, and skin, powered by advanced biotech peptides.

Explore our most requested research peptides — each COA-verified and batch-tested in the U.S.

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Explore the Science Behind Every Peptide

We break down peer-reviewed studies so you can make informed decisions. No fluff — just research summaries, peptide comparisons, and deep dives into molecular pathways.Discover collagen peptides, vital proteins collagen peptides, and advanced biotech peptides for weight loss, muscle growth, skin, and proven collagen peptides benefits.

Browse Research Articles

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About Proliven Labs

Proliven Labs is a U.S.-based supplier of high-purity research-use-only (RUO) peptides. We partner with trusted domestic
manufacturers and test every batch through third-party labs. Our mission is to
give researchers a reliable source of COA-verified, small-batch peptides — with
transparency, education, and consistency at the core.

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