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peptides

product-1400-1400

Products Description

### Systematic analysis: molecular characteristics, applications and synergistic effects of BPC-157, GHK-Cu and TB-500

#### **Introduction**

As bioactive molecules, peptides have attracted much attention in the fields of medicine, regenerative medicine and anti-aging. BPC-157, GHK-Cu (copper peptide) and TB-500 (thymosin β4 derivative) have become research hotspots due to their unique repair and regeneration capabilities. This article systematically analyzes the scientific characteristics of these three peptides from the perspectives of physicochemical properties, color characteristics, biological activity and clinical applications.

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### **1. BPC-157 (Body Protection Compound-157)**

#### **1. Molecular structure and physicochemical properties**

- **Molecular formula and molecular weight**: A linear peptide composed of 15 amino acids, with a molecular weight of approximately 1419.5 Da, and a sequence of Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val.

- **Solubility**: Easily soluble in water (>50 mg/mL), slightly soluble in ethanol, avoid strong acid or strong alkaline environment.

- **Stability**: Most stable at pH 6-8, easy to degrade at high temperature (>40℃) or ultraviolet radiation, recommended to store in a dry state at -20℃.

#### **2. Color and appearance**

- White or off-white freeze-dried powder, no impurities precipitate when high purity, transparent and colorless solution.

#### **3. Biological activity and advantages**

- **Tissue repair**: Promotes angiogenesis by upregulating VEGF, accelerates gastrointestinal, muscle and tendon healing.

- **Anti-inflammatory effect**: Inhibits TNF-α and IL-6, relieves arthritis and intestinal inflammation.

- **Neuroprotection**: Regulates 5-HT and GABA systems, improves nerve damage and anxiety behavior.

- **Safety**: No significant toxicity reported, median lethal dose (LD50)>10 mg/kg (rat).

#### **4. Application fields**

- Sports medicine (ligament injury repair), gastrointestinal diseases (ulcerative colitis), auxiliary treatment of neurodegenerative diseases.

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### **2. GHK-Cu (copper peptide, Glycyl-Histidyl-Lysine-Cu²⁺)**

#### **1. Molecular structure and physicochemical properties**

- **Molecular formula and molecular weight**: tripeptide complex (C₁₄H₂₄CuN₆O₄), molecular weight 401.9 Da, containing copper ion chelate structure.

- **Solubility**: Good water solubility (10-20 mg/mL), easy to precipitate copper ions in acidic environment (pH<5).

- **Stability**: Sensitive to light, need to be stored away from light; stable for 6 months at 4°C.

#### **2. Color and appearance**

- Because copper ions are blue to blue-green powder, the solution is transparent blue, and the color depth reflects the copper content.

#### **3. Biological activity and advantages**

- **Skin regeneration**: Activate collagen I/IV synthesis, reduce wrinkles, and improve elasticity.

- **Antioxidant**: Remove ROS and protect cells from UV damage.

- **Anti-inflammatory and immune regulation**: Inhibit NF-κB pathway and reduce chronic inflammation.

- **Hair growth promotion**: Stimulate the proliferation of hair follicle stem cells and improve hair loss.

#### **4. Application areas**

- Beauty and skin care (anti-aging essence), burn repair, hair loss treatment and chronic wound care.

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### **3. TB-500 (thymosin β4 active fragment)**

#### **1. Molecular structure and physicochemical properties**

- **Molecular formula and molecular weight**: A synthetic peptide containing 43 amino acids, with a molecular weight of 4963.5 Da and a core sequence of LKKTETQ.

- **Solubility**: A weakly acidic buffer (such as saline containing 1% acetic acid) is required for dissolution, and the water solubility is poor.

- **Stability**: Stable at -20°C in a freeze-dried state, and easily inactivated by repeated freezing and thawing.

#### **2. Color and appearance**

- White or off-white powder, colorless and transparent liquid after dissolution, may be slightly turbid at high concentrations.

#### **3. Biological activity and advantages**

- **Cell migration promotion**: Accelerates the migration of fibroblasts and endothelial cells through G-actin binding.

- **Angiogenesis**: Enhances blood supply to ischemic tissues and is used for myocardial infarction repair.

- **Anti-fibrosis**: inhibits TGF-β1 and reduces scar formation.

- **Muscle recovery**: improves exercise endurance and reduces delayed onset muscle soreness (DOMS).

#### **4. Application areas**

- Cardiovascular disease (myocardial repair), sports injury rehabilitation, fibrotic disease (liver cirrhosis) intervention.

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### **4. Synergistic effect and comparison of the three**

#### **1. Comparison of physical and chemical properties**

| Properties | BPC-157 | GHK-Cu | TB-500 |

|--------------|------------------|------------------|------------------|

| **Molecular weight** | ~1419 Da | ~401 Da | ~4963 Da |

#### **2. Synergistic application scenarios**

- **Combined wound repair solution**: BPC-157 (anti-inflammatory) + TB-500 (angiogenesis) accelerates deep wound healing.

- **Anti-aging combination**: GHK-Cu (collagen regeneration) + BPC-157 (antioxidant) improves overall skin health.

- **Sports recovery cocktail therapy**: The combination of the three can simultaneously relieve muscle inflammation, promote muscle fiber repair and enhance endurance.

#### **3. Preparation and usage precautions**

- **Solvent selection**: GHK-Cu needs to avoid EDTA to prevent copper ion chelation; TB-500 recommends the use of solvents containing acetic acid.

- **Administration method**: Subcutaneous or local injection is the main method, and GHK-Cu can be applied externally to the skin.

- **Dosage control**: BPC-157 (10μg/kg/day), GHK-Cu (2-5mg/day), TB-500 (10mg/week).

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### **5. Future research direction**

- **Nanocarrier delivery system**: Improve the transdermal absorption rate of GHK-Cu and the bioavailability of TB-500.

- **Gene expression regulation mechanism**: In-depth analysis of BPC-157's targets at the epigenetic level.

- **Long-term safety assessment**: Conduct multicenter clinical trials to verify the potential risks of high-dose combination therapy.

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### **Conclusion**

BPC-157, GHK-Cu and TB-500 have shown broad prospects in the field of regenerative medicine due to their unique molecular properties. Understanding their differences in physicochemical properties and biological activities will help optimize application plans and promote the development of personalized treatments. In the future, through dosage form improvement and mechanism exploration, the three may become core tools to combat tissue degeneration and aging.