Peptides IGF-DES 0.1mg CAS：67763-96-6

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IGF-DES (Des(1-3) IGF-1) is a variant of insulin-like growth factor-1 (IGF-1), which is named by removing the first three amino acids (gly-pro-glu) of IGF-1. Compared with standard IGF-1, IGF-DES has higher biological activity in certain situations, especially in the fields of muscle growth, repair and tissue regeneration.

### **Physical and Chemical Properties**

1. **Molecular Structure**:

- IGF-DES is a short peptide composed of 70 amino acids, similar to IGF-1 in structure, but slightly shorter due to the lack of the first three amino acids.

- Its amino acid sequence modification improves its ability to bind to receptors while reducing its affinity for binding proteins.

2. **Molecular Weight**:

- It is about 7.5 kDa, slightly smaller than standard IGF-1.

3. **Solubility**:

- IGF-DES is usually provided in the form of lyophilized powder, which is easily soluble in water or saline and needs to be prepared into a solution for injection.

4. **Stability**:

- It is stable in the freeze-dried state, but needs to be stored at low temperature after being prepared into a solution. Avoid high temperature and light when using to prevent degradation.

### **Main functions and mechanisms of action**

IGF-DES works by binding to the IGF-1 receptor (IGF-1R) and activating the following signaling pathways:

- **PI3K/AKT/mTOR pathway**: Promotes protein synthesis and cell growth.

- **MAPK pathway**: Enhances cell proliferation and differentiation.

- **Anti-apoptotic effect**: Reduces muscle cell damage and death.

#### Action characteristics:

1. **Higher activity**: IGF-DES has 5-10 times higher biological activity on target tissues than IGF-1 because its structure reduces binding to plasma binding proteins (IGFBPs) and increases the bioavailability of free IGF.

2. **Strong local effect**: Shows stronger growth and repair effects in local tissues after injection.

3. **Anti-damage effect**: Has good repair and protection effects on muscle tissue damage.

#### Common dosage:

- **Research and experimental use**:

- The recommended dosage is usually 50-150 micrograms (mcg), which is adjusted according to the experimental design.

- **Non-medical use (such as bodybuilding or sports recovery)**:

- The dosage range is usually 50-100 micrograms, 1-2 times a day, depending on individual needs.

#### Usage:

- **Injection site**:

- Usually intramuscular injection (IM) or subcutaneous injection (SC) to enhance the local growth effect of the target tissue.

- **Time of use**:

- Mostly used immediately after exercise to take advantage of its rapid growth effect.

- **Preparation and storage**:

- The lyophilized powder is dissolved in sterile water and used, and the remaining part needs to be refrigerated.

### **Half-life and pharmacokinetics**

1. **Half-life**:

- The half-life of IGF-DES is about 20-30 minutes, which is significantly shorter than that of standard IGF-1 (about 20 hours).

- Despite its short half-life, its rapid action and high efficacy make it ideal for local action.

2. **Metabolic characteristics**:

- Rapid onset of action at the injection site, followed by metabolism into inactive peptide fragments.

- Short bioavailability requires frequent dosing to maintain growth effects.

### **Cycle and use strategy**

1. **Cycle length**:

- A 4-6 week cycle is usually recommended, which may be adjusted based on individual needs.

- Longer use may lead to tolerance or potential hormone regulation issues.

2. **Combination with other peptides**:

- Often used in combination with other growth-promoting peptides (e.g., GH, CJC-1295) to achieve synergistic effects.

3. **Rest period**:

- A 2-4 week break is recommended after the cycle to restore natural hormone balance.

### **Advantages and limitations**

#### **Advantages**:

- Stronger local growth effect.

- Rapid onset, particularly suitable for sports recovery and tissue repair.

- Reduced binding to IGFBPs and improved bioavailability.

#### **Limitations**:

- Short half-life requires frequent injections.

- Abuse may lead to hormone regulation problems or potential side effects.

### **Risks and Side Effects**

1. **Potential Side Effects**:

- **Local Reactions**: Redness, pain, or itching may occur at the injection site.

- **Hypoglycemia**: Excessive use may cause hypoglycemia symptoms.

- **Endocrine Disruption**: Long-term or high-dose use may inhibit the secretion of endogenous IGF-1.

2. **Risk of Abuse**:

- In non-medical use, long-term abuse may increase the risk of cancer because the cell proliferation-promoting properties of IGF-DES may activate potential tumor cells.

### **Summary**

**IGF-DES** is a highly effective IGF-1 variant that has attracted much attention in the field of muscle repair and tissue regeneration due to its local growth effect and rapid onset of action. However, due to its short half-life and potential side effects, its use should be cautious, especially in non-medical use. It is recommended to use it under the guidance of a professional doctor or researcher to ensure safety and effectiveness.

IGF-DES is a small molecule peptide compound based on insulin-like growth factor (IGF-1). IGF-DES is mainly a synthetic IGF-1 derivative with high biological activity and is widely used in the study of muscle growth, tissue repair and metabolic regulation. The following is a detailed introduction to IGF-DES:

### **Applicable population**

IGF-DES is mainly used in scientific research and is not currently widely approved as a therapeutic drug, but it has potential application value in certain fields, including:

1. **Bodybuilders and athletes** (non-medical use):

- Used to accelerate muscle growth and recovery.

- Enhance strength and endurance.

2. **Clinical research population**:

- **Muscle diseases**: such as muscle atrophy and degenerative diseases.

- **Injury repair**: Accelerated healing after soft tissue injury and surgery.

- **Neurological diseases**: Potential research on neurodegenerative diseases.

3. **Anti-aging research**:

- Whether it can delay the aging process by stimulating tissue repair and metabolic improvement.

### **Working Principle**

The working principle of IGF-DES is based on the biological function of IGF-1, but it has higher local activity than ordinary IGF-1, which is mainly reflected in the following aspects:

1. **Promote cell division and growth**:

- Stimulate the proliferation and differentiation of myoblasts and accelerate muscle tissue regeneration.

- Enhance cell protein synthesis and reduce protein breakdown.

2. **Regulate glucose metabolism**:

- Improve glucose uptake and utilization to support cell energy needs.

3. **Local targeted effect**:

- Unlike full-length IGF-1, IGF-DES is more suitable for local tissue application, takes effect quickly, and is not easily affected by binding proteins in serum.

4. **Anti-inflammatory and repair**:

- Promote collagen production during tissue repair and reduce inflammatory response.

### **Usage and Dosage**

Since IGF-DES is not approved as a medical drug, the following information is for scientific reference only:

1. **Usage**:

- It is usually applied directly to the target site by subcutaneous or intramuscular injection to enhance the local effect.

- The injection site is usually the tissue area that needs to be repaired or grown (such as damaged muscle).

2. **Dosage**:

- The typical dose range is **10-50 micrograms/day**, which is adjusted according to the target study and individual differences.

- It should start with a low dose and gradually adjust to evaluate tolerance and effect.

- The general continuous use time is **4-6 weeks**, and then stop for a period of time to avoid decreased sensitivity to the body.

3. **Dissolution and Storage**:

- It is usually necessary to dissolve it with sterile water (or saline), and it needs to be refrigerated after preparation (2-8℃).

- The prepared solution should be used as soon as possible to avoid reduced activity.

### **Precautions**

1. **Side effects**:

- Potential side effects include hypoglycemia, local redness and swelling, headache or endocrine disorders.

- Long-term excessive use may cause metabolic disorders or interfere with the endocrine system.

2. **Contraindications**:

- Pregnant or breastfeeding women.

- People with a history of tumors or cancer (IGF molecules may stimulate tumor cell growth).

- Minors (because they may affect normal endocrine development).

3. **Legality**:

- In most countries, IGF-DES is only used for laboratory and scientific research purposes, and its use in non-medical contexts may be legally and ethically controversial.

4. **Use with caution**:

- Use only under professional guidance and strictly control the dosage.

### Summary

As a powerful synthetic peptide molecule, IGF-DES shows the potential to promote muscle repair and enhance metabolism. However, its specific medical value and safety need further study. Any use of IGF-DES must strictly follow scientific research or medical regulations and be carried out under the guidance of professionals.

IGF-DES is a derivative form of insulin-like growth factor-1 (IGF-1), whose full name is **insulin-like growth factor-1 Des(1-3)**. Compared with IGF-1, IGF-DES has higher biological activity and can be absorbed by tissues more quickly. Its effect is more focused on promoting cell growth and metabolic regulation. The following are the main benefits of IGF-DES:

### **1. Promote muscle growth and recovery**

- IGF-DES can significantly accelerate the division and proliferation of muscle cells, stimulate muscle protein synthesis, and is an important booster for increasing muscle strength and volume.

- It is particularly suitable for accelerating muscle repair and recovery after high-intensity training and reducing muscle soreness after training.

- Compared with ordinary IGF-1, IGF-DES is more effective after local injection because of its higher sensitivity and specificity to act directly on the target tissue.

### **2. Improve wound healing**

- IGF-DES significantly promotes the healing of wounds, burns and surgical wounds by accelerating the regeneration of fibroblasts and epithelial cells.

- It also increases collagen synthesis, helping damaged tissue regain strength and elasticity faster.

### **3. Improve fat metabolism**

- IGF-DES is outstanding in regulating lipolysis (fatty acid oxidation), helping to reduce fat storage and increase energy consumption.

- IGF-DES is a very effective adjuvant for individuals who need to improve their body fat ratio or seek to lose fat.

### **4. Enhance cell regeneration and anti-aging**

- IGF-DES can promote cell division and tissue renewal, showing great potential in the field of anti-aging.

- It can help delay age-related tissue degeneration by stimulating stem cell proliferation, improving the body's self-repair ability.

### **5. Promote bone health**

- IGF-DES promotes bone formation by stimulating the activity of osteoblasts (osteoblasts) and may be used to combat osteoporosis.

- For patients with fractures, IGF-DES can shorten healing time and enhance bone strength.

### **6. Support nerve regeneration**

- Preliminary studies suggest that IGF-DES also has potential in neuroprotection and neuroregeneration. It may help repair damaged neurons and improve nervous system function.

- This may have clinical implications for recovery from neurodegenerative diseases or nerve damage.

### **7. Improve skin condition**

- IGF-DES has gained attention in the field of beauty and skin care due to its properties of stimulating collagen production.

- It increases skin elasticity, reduces wrinkles, improves skin texture, and makes skin look younger and healthier.

### **8. Support immune function**

- IGF-DES can promote the activity of immune cells, such as macrophages and T cells, thereby enhancing the immune system's resistance to infection and disease.

### **9. Promote cardiovascular health**

- Research shows that IGF-DES helps improve the function of cardiomyocytes and promotes the repair of vascular endothelial cells, thereby improving cardiovascular health.

- It may reduce the risk of arteriosclerosis and improve blood circulation.

### **10. Accelerate neuromuscular coordination**

- IGF-DES can improve the coordination between nerves and muscles through the repair and strengthening of neurons, improving sports performance and fine motor control.

### **Special advantages: high biological activity and short half-life**

- The short half-life of IGF-DES (a few minutes to tens of minutes) makes its effect rapid and concentrated, and can avoid the side effects caused by systemic excessive activation.

- It has a higher local effect than regular IGF-1, especially when applied to muscle target areas.

### **Potential Applicable Population**

1. **Athletes and Bodybuilders**: Want to accelerate muscle growth, enhance strength and endurance.

2. **Patients in recovery**: including recovery after surgery, fracture healing period, burns or other tissue injuries.

3. **Those who want to lose fat**: Hope to reduce body fat ratio by regulating metabolism.

4. **Anti-Aging Enthusiast**: Seeking to delay aging and improve appearance and body function.

### **Notes**

Although IGF-DES exhibits many potential benefits, attention still needs to be paid to its possible side effects, such as the risk of tumors caused by hypoglycemia, hormonal imbalance, or overactivation of growth factors. Before use, a professional physician should be consulted and the dosage and cycle should be strictly adhered to.

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