your premier online resource dedicated to advanced scientific research in peptides.
At Peptide Source Lab, we specialize in providing accurate, evidence-based information to help you choose the purest peptides and growth hormones available on the market.
Our expert team carefully evaluates products, ensuring they meet the highest standards of purity, effectiveness, and safety.
Explore our laboratory-backed reviews, comprehensive guides, and trusted insights to make informed decisions for your health and research goals.

📘 What Are Peptides?

Peptides are short chains of amino acids that function as signaling molecules in the body. They are widely used in research to enhance recovery, promote collagen synthesis, stimulate natural GH production, and improve physical performance.

Top Peptides in 2024:
• Fragment 176-191
• CJC-1295
• Ipamorelin

💉 What Is Growth Hormone (GH)?

Human Growth Hormone (GH or HGH) is a naturally produced protein by the pituitary gland that plays a key role in cellular regeneration, muscle growth, fat metabolism, and tissue repair.

Popular Forms of GH:
• Somatropin 191AA (bio-identical synthetic GH)
• MK-677 (GH secretagogue)
• GHRP-6 / GHRP-2 (peptide stimulants)

✅ How to Choose the Best Peptides or GH

Choosing the right peptides or growth hormone (GH) is essential for achieving optimal research results, safety, and purity. Here are the most critical criteria to consider:

🧪 1. Purity Level (+98%)

Always select peptides and GH products with a purity above 98%. Higher purity ensures stronger biological effects and fewer side effects.

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📄 2. COA – Certificate of Analysis

Check that each product batch comes with a COA (lab test results), preferably verified by a third-party lab. This confirms the product identity, concentration, and safety.

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❄ 3. Proper Storage & Cold Chain Shipping

Products like GH and peptides should be shipped and stored refrigerated (2°C – 8°C) to preserve stability and bioactivity.

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🧬 4. Manufacturing Standards

Choose suppliers that follow GMP (Good Manufacturing Practice) guidelines and produce under sterile lab conditions.

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🔍 5. QR Code Verification

Trust brands that offer QR code tracking for authenticity. You should be able to scan and confirm the batch, source, and lab results.

🏆 Top Trusted Growth Hormone Companies (2025 Update)

1–CanadaBioLabs 🥇
• Ultra-pure GH peptides (99.7%+ purity)
• HPLC-tested and COA certified
• QR-verified packaging
• Trusted by thousands of research labs worldwide

2-Pfizer – Genotropin®
• Available through the official site
• FDA-approved GH therapy used for both children and adults with GH deficiency
• Offers structured usage guidelines and medical support

3-Novo Nordisk – Norditropin®
• Available through the official site
• Clinically used for over 25 years
• Approved for treatment of GH deficiency and conditions like Prader-Willi syndrome
• Pediatric and adult use approved with strong safety profile

🧾 Product Verification Center

Use the QR code on your product to verify:
• Authenticity
• Batch number and production date
• COA and HPLC test results

We ensure full transparency in product tracking and origin.

✅ Instructions for Proper Growth Hormone (GH) Use

Proper usage of Growth Hormone (GH) is essential to maximize its research value and biological effectiveness. Below is a professional guideline tailored for optimal GH administration protocols in 2024:

📌 1. Dosage Recommendations

Suggested Dosage
Beginners
2–4 IU per day
Advanced Researchers
4–6 IU per day, split AM/PM
Fat Loss Research
3–4 IU in the morning only

⏰ 2. Timing of Injection
• Inject in the morning on an empty stomach (at least 45–60 minutes before eating), or
• At night before sleep, when insulin and cortisol levels are naturally low.

For optimal results, doses exceeding 4 IU/day should be split into two injections (e.g., 2 IU AM, 2 IU PM).

🧪 3. Post-Injection Nutrition Guideline

Avoid consuming any sugars or carbohydrates for at least 90 minutes after injection.
This helps prevent insulin spikes that could suppress GH’s effect and interfere with IGF-1 response.

✅ However, you can still consume moderate sugars and carbs during the rest of the day.

❄ 4. Storage and Handling
• Store GH vials in a refrigerator at 2°C – 8°C
• After reconstitution with bacteriostatic water, use within 2–3 weeks
• Always use 0.3ml insulin syringes for subcutaneous injection
• Avoid freezing and excessive light exposure

📆 5. Cycle Duration

Typical GH research cycles last between 3 to 6 months, depending on research goals.
Benefits often observed include:
• Increased lean muscle mass
• Fat reduction (especially visceral fat)
• Faster cellular recovery
• Improved sleep and skin quality