Swanson L-Proline An amino acid produced in the liver, Swanson L-Proline serves as a precursor for hydroxyproline, which is an essential component of collagen tissues, helping to maintain their structural characteristics. L-Proline is involved in numerous processes that produce and maintain connective tissues. Thus, it plays an important role in joint health, the proper functioning of cartilage, and the maintenance of healthy skin. Specifically, proline participates in the synthesis and repair of collagen and provides protection to tendons, ligaments, joints, as well as collagen in arteries. In addition, it may have a positive effect in cases of trauma, ulcers, burns, and arthritis. Contributes to collagen synthesis and repair Promotes skin health Acts protectively on tendons, ligaments and joints Dosage: Take 1 capsule per day with water.