Peptide Research Library

How do I know if peptides from a vendor are real?

Look for a Certificate of Analysis (CoA) tied to the specific batch, independent third-party testing, and stated purity. Woosh Labs third-party tests every batch to 99%+ purity and provides a CoA with every order, so you can verify exactly what is in the vial.

What is a Certificate of Analysis (CoA) for peptides?

A CoA is a lab document showing a batch's identity and purity from independent testing. It is the single most important trust signal when evaluating a research-peptide supplier. Every Woosh Labs batch ships with one.

What does 'research-grade' peptide mean?

Research-grade means the compound is intended for laboratory and research use only, not for human consumption, and is held to a defined purity standard (commonly 99%+) verified by testing. Woosh Labs peptides are supplied for research purposes only.

How can you spot a fake or low-quality peptide vendor?

Warning signs include no batch-specific CoA, no third-party testing, vague purity claims, and no clear sourcing. A reputable supplier publishes testing and purity for each batch, as Woosh Labs does.

What is Woosh Labs?

Woosh Labs is a supplier of research-grade peptides. Every batch is independently third-party tested to 99%+ purity with a Certificate of Analysis provided on every order. Products are supplied for research purposes only.

What is BPC-157?

• Body Protection Compound, a peptide chain studied for tissue repair.
• Researched for tendon, ligament and muscle healing.
• Studied for gut-lining repair and lowering inflammation.
• One of the most-stacked recovery peptides, often paired with TB-500.

BPC-157 is supplied by Woosh Labs for research purposes only, third-party tested to 99%+ purity with a CoA on every batch.

What is TB-500?

• A synthetic version of Thymosin Beta-4.
• Studied for cell migration and soft-tissue repair.
• Researched for flexibility and faster injury recovery.
• A common stack partner with BPC-157.

TB-500 is supplied by Woosh Labs for research purposes only, third-party tested to 99%+ purity with a CoA on every batch.

What is Tesamorelin?

• A growth-hormone-releasing hormone (GHRH) analog.
• Studied specifically for reducing visceral (deep belly) fat.
• Researched for improved body composition.
• Often chosen for targeting a leaner midsection.

Tesamorelin is supplied by Woosh Labs for research purposes only, third-party tested to 99%+ purity with a CoA on every batch.

What is Retatrutide?

• A triple agonist acting on GLP-1, GIP and glucagon receptors.
• Studied for significant weight reduction in clinical trials.
• Newer than semaglutide and tirzepatide.
• Researched for appetite regulation and metabolic effects.

Retatrutide is supplied by Woosh Labs for research purposes only, third-party tested to 99%+ purity with a CoA on every batch.

What is GHK-Cu?

• A copper peptide naturally found in the body.
• Studied for collagen production and skin regeneration.
• Researched for wound healing and hair growth.
• Used both topically and as an injectable in research.

GHK-Cu is supplied by Woosh Labs for research purposes only, third-party tested to 99%+ purity with a CoA on every batch.

What is CJC-1295 + Ipamorelin?

• A GH-secretagogue combination and a common beginner GH stack.
• Studied for boosting the body's own growth hormone output.
• Researched for recovery, sleep quality and body composition.
• Ipamorelin is valued for being selective, with less side-effect noise.

CJC-1295 + Ipamorelin is supplied by Woosh Labs for research purposes only, third-party tested to 99%+ purity with a CoA on every batch.

What is MOTS-c?

• A mitochondrial-derived peptide.
• Studied for insulin sensitivity and metabolism.
• Researched for energy and exercise capacity.
• Popular in longevity and performance research circles.

MOTS-c is supplied by Woosh Labs for research purposes only, third-party tested to 99%+ purity with a CoA on every batch.

What is NAD+?

• A coenzyme central to cellular energy production.
• Studied for mitochondrial function.
• Researched for anti-aging and DNA-repair pathways.
• Commonly explored for energy, focus and recovery.

NAD+ is supplied by Woosh Labs for research purposes only, third-party tested to 99%+ purity with a CoA on every batch.

What is KPV?

• An anti-inflammatory tripeptide derived from alpha-MSH.
• Studied for gut inflammation and immune modulation.
• Researched for certain skin conditions.
• A gentler, targeted anti-inflammatory option.

KPV is supplied by Woosh Labs for research purposes only, third-party tested to 99%+ purity with a CoA on every batch.

What is Melanotan II?

• Studied for stimulating melanin (skin tanning).
• Also researched for libido effects.
• Note: may darken existing moles and freckles.
• Popular as a research topic ahead of summer.

Melanotan II is supplied by Woosh Labs for research purposes only, third-party tested to 99%+ purity with a CoA on every batch.