B7-33

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What Is B7-33?

Peptide

B7-33 is a synthetic, single-chain peptidomimetic agonist of the relaxin family peptide receptor 1 (RXFP1), derived from the B-chain of human gene-2 relaxin. It is designed to replicate the vasoprotective and anti-fibrotic effects of native relaxin while being more cost-effective to produce and possessing improved pharmacological properties.

B7-33 Research & Studies

01 B7-33, a Functionally Selective Relaxin Receptor 1 Agonist, Attenuates Myocardial Infarction-Related Adverse Cardiac Remodeling in Mice

This study found that B7-33 reduces heart damage and scarring after a heart attack by activating specific protective pathways without the side effects of traditional relaxin treatments.

View Study (PubMed)
02 B7-33 replicates the vasoprotective functions of human gene-2 relaxin

Research demonstrates that B7-33 effectively mimics the vascular benefits of human relaxin, promoting blood vessel health and reducing systemic vascular resistance.

View Study (PubMed)

B7-33 User Reviews & Experiences

75% Positive

*Based on large scale analysis of publicly available user experiences

User interest is high due to its anti-fibrotic potential and cardiovascular benefits, though it is primarily discussed in specialized peptide and biohacking circles rather than general supplement forums.

B7-33 Benefits, Dosage & Side Effects

Effects
  • Anti-Fibrotic Action: Reduces the buildup of scar tissue in organs like the heart and kidneys.
  • Vasodilation: Promotes the widening of blood vessels, which can improve circulation and lower blood pressure.
  • Extracellular Matrix Remodeling: Helps regulate the structural framework of tissues, aiding in repair and preventing stiffness.
Effectiveness
  • Cardiac Health: Highly effective in animal models for preventing adverse remodeling after myocardial infarction.
  • Vascular Protection: Successfully replicates the beneficial effects of serelaxin on endothelial function.
  • Targeted Activation: Shows functional selectivity for RXFP1, minimizing off-target signaling pathways.
Dosage & Administration
  • Research Dosing: Animal studies often utilize weight-based dosing; human anecdotal ranges typically fall between 1-5mg daily.
  • Frequency: Due to its peptide nature, it is typically administered via subcutaneous injection daily or every other day.
  • Loading Phase: Some users suggest a short high-dose period to achieve steady state, though this is not clinically validated.
Side Effects
  • Blood Pressure Drops: Potential for hypotension due to its potent vasodilatory properties.
  • Injection Site Reaction: Possible redness, itching, or swelling at the site of administration.
  • Hypoglycemia: Minimal reports suggest potential interactions with glucose metabolism in sensitive users.
Availability & Sourcing
  • Legal Status: Currently sold as a 'research chemical' and not approved by the FDA for human consumption.
  • Sourcing: Primarily available through specialized peptide supply companies and compounding pharmacies.

Related Compounds

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