Introducing our first economical, high-quality L-proline supplement. An amino acid manufactured in the liver, Swanson L-Proline serves as a precursor to hydroxyproline, which is an essential component of collagen tissues that helps maintain their structural characteristics. L-Proline is involved in many processes that produce and maintain connective tissues.

• Maintains muscle and connective tissue health
• Essential component of collagen
• High-quality amino acid supplement

Nutrition Information