Peptide Guide

Evidence-based information on therapeutic peptides

BPC-157

Body Protection Compound-157

A synthetic peptide derived from a protective protein found in gastric juice. BPC-157 has demonstrated remarkable healing properties across multiple tissue types in research studies.

Primary Benefits

Mechanisms of Action

BPC-157 works by promoting angiogenesis (new blood vessel formation), modulating growth factor expression, and stabilizing cellular structures. It interacts with the nitric oxide system and influences various growth factor pathways including VEGF.

Typical Dosing: 250-500 mcg once or twice daily, via subcutaneous or intramuscular injection. Some protocols use higher doses for acute injuries.

TB-500

Thymosin Beta-4 Fragment

A synthetic version of a naturally occurring peptide present in nearly all human cells. TB-500 plays a crucial role in tissue repair, wound healing, and cellular migration.

Primary Benefits

Mechanisms of Action

TB-500 regulates actin, a cell-building protein essential for cell structure, movement, and proliferation. It promotes cell migration to injury sites, reduces inflammation, and supports the formation of new blood vessels. Unlike BPC-157, TB-500 has more systemic effects throughout the body.

Typical Dosing: 2-5 mg twice weekly for 4-6 weeks (loading phase), then maintenance at 2-5 mg once weekly or as needed. Administered via subcutaneous injection.

GHK-Cu

Glycyl-L-Histidyl-L-Lysine Copper Complex

A naturally occurring copper-binding peptide found in human plasma, saliva, and urine. GHK-Cu levels decline with age, and supplementation has shown benefits for skin, tissue repair, and overall regeneration.

Primary Benefits

Mechanisms of Action

GHK-Cu influences over 4,000 genes, primarily those involved in tissue repair, antioxidant responses, and anti-inflammation. The copper component is essential for various enzymatic reactions. It activates tissue remodeling, increases angiogenesis, and stimulates nerve outgrowth.

Typical Dosing: 1-3 mg daily via subcutaneous injection or topical application for skin benefits. Some protocols use 3-5 mg for systemic effects. Often cycled with breaks.

Retatrutide

Triple Agonist: GIP/GLP-1/Glucagon Receptor

A novel triple agonist peptide that targets three hormone receptors involved in metabolism and appetite regulation. Currently in clinical trials, retatrutide shows exceptional promise for weight management and metabolic health.

Primary Benefits

Mechanisms of Action

By activating GIP, GLP-1, and glucagon receptors simultaneously, retatrutide creates a synergistic metabolic effect. GLP-1 reduces appetite and slows gastric emptying, GIP enhances insulin secretion and may improve fat metabolism, while glucagon activation increases energy expenditure and promotes fat oxidation.

Typical Dosing: Starting at 2 mg weekly, titrating up to 8-12 mg weekly based on tolerance and response. Administered via subcutaneous injection. Gradual dose escalation is essential to minimize side effects.

Ipamorelin

Growth Hormone Secretagogue

A selective growth hormone secretagogue that stimulates the pituitary gland to release growth hormone without significantly affecting cortisol or prolactin levels. Known for its clean action profile and minimal side effects.

Primary Benefits

Mechanisms of Action

Ipamorelin binds to the ghrelin/growth hormone secretagogue receptor, triggering pulsatile growth hormone release similar to natural patterns. Its selectivity means it doesn't substantially elevate cortisol or prolactin, avoiding many side effects associated with less selective compounds.

Typical Dosing: 200-300 mcg 1-3 times daily, typically taken before bed and/or post-workout. Administered via subcutaneous injection. Often cycled 5 days on, 2 days off, or used continuously for 3-6 months followed by a break.