**Requirements:** 1. Maintain the original format and structure. 2. The translation should be accurate, fluent, and natural. 3. Maintain professionalism and consistency. 4. Only provide the translation result; no additional explanations are required. **Original Text:** L-Citrulline, being a non-essential amino acid for the human body, can be synthesized internally. However, in scenarios such as enhancing athletic performance, anti-aging maintenance, and regulating sub-health conditions, additional supplementation can more effectively utilize its physiological benefits. Its primary mechanism of action is to be converted into L-arginine, which then produces nitric oxide (NO). Combined with Jingjing Pharmaceutical’s 20 years of expertise in enzymatic technology, the quality and efficacy of the product are further guaranteed. The details are as follows: **I. Core Efficacy:** - **Multi-dimensional Health Protection**: - **Cardiovascular Health**: Dilates blood vessels, assists in blood pressure regulation, and improves reproductive circulation by increasing nitric oxide levels. - **Athletic Performance**: Reduces lactic acid accumulation, enhances endurance, and accelerates recovery. It also improves muscle oxygen and nutrient delivery, reducing the retention of metabolic waste, making it suitable for professional athletes and individuals engaged in heavy physical labor. - **Immune Regulation**: Boosts the activity of immune cells, enhances the body’s immune response, and provides energy support for immune cells, thereby strengthening the resistance of people in sub-health conditions. **II. Product Core Advantages:** - **20 Years of Expertise, Setting Industry Standards:** - **Leading Technology, Safety, and Efficiency**: With 20 years of experience in the L-citrulline field, the product is produced using advanced enzymatic technology, ensuring higher purity and more stable components, thus minimizing the risk of chemical residues and enhancing safety. - **Authentic Quality, Globally Recognized**: The product complies with international standards such as USP and AJI and has obtained multiple certifications, including Hala, Kosher, and ISO22000, making it suitable for a wide range of applications, including health supplements and functional foods. - **Rich Product Range**: Offers both pure L-citrulline and L-citrulline DL-malate (1:1/2:1) compound formulas, with standardized packaging of 25 kg per box or barrel, to meet the needs of various customers for formula development and mass production. - **Market Leader with a Solid Reputation**: As a core best-selling product of the company, it is a major source of revenue, maintaining a high market share internationally and earning the long-term trust of customers worldwide due to its consistent quality. Jingjing Pharmaceutical leverages 20 years of technical expertise to empower its L-citrulline products with enzymatic technology, offering a variety of formulas, authoritative quality, and high efficacy to meet the diverse needs of customers globally.