NOW Sports Arginine & Citrulline 500 mg / 250 mg, 240 Veg Capsules for Protein Metabolism & Muscle Support

NOW Sports Arginine & Citrulline 500 mg / 250 mg is an amino acid supplement designed for active adults, athletes, and fitness-focused users who want convenient support for protein metabolism, muscle maintenance, and workout routines.

Each vegetarian capsule provides L-Arginine and L-Citrulline, two amino acids involved in amino acid utilization and normal urea cycle function. This formula is commonly used in sports nutrition because arginine and citrulline are associated with nitric oxide-related wellness pathways and active lifestyle support.

With 240 veg capsules per bottle, it is a routine-friendly option for users who prefer capsules over powders. The formula is keto friendly, non-GMO, vegan / vegetarian, made without gluten, and not manufactured with common allergens such as wheat, soy, milk, egg, fish, shellfish, tree nuts, or sesame. It is also GMP quality assured, giving buyers a trusted amino acid supplement option for daily fitness and performance-focused wellness routines.

Key Benefits

• Supports protein metabolism and amino acid utilization.
• Helps maintain muscle tissue during active routines.
• Provides L-Arginine and L-Citrulline in one convenient capsule formula.
• Designed to support nitric oxide-related sports nutrition goals.
• Supports normal urea cycle function and metabolic balance.
• Convenient 240-count bottle for long-term supplement routines.

Product Details

Featured Ingredients

L-Arginine: A free-form amino acid that supports protein metabolism and is commonly used in sports nutrition routines for nitric oxide-related wellness support.

L-Citrulline: An amino acid that works alongside arginine in the urea cycle and helps support normal amino acid utilization, muscle maintenance, and active lifestyle goals.

How to Use

Take 1 capsule 2 times daily. Store in a cool, dry, dark place after opening. Use only as directed on the product label.

Best Time to Take

Best taken as directed on the label. It may be used before exercise or as part of a daily amino acid routine, depending on personal preference and tolerance.

Best For

• Adults seeking amino acid supplement support.
• Athletes and fitness-focused users.
• People looking for protein metabolism support.
• Active individuals focused on muscle maintenance.
• Users who prefer capsules instead of powder.
• Keto, vegan / vegetarian, and non-GMO supplement routines.