Source Naturals L-proline 275/l-lysine 275 amino acids are the precursors of hydroxylysine and hydroxyproline, two constituents of collagen, an essential component of arterial linings.

• Source Naturals Bio-Aligned Formulas are formulations with potent bio-active nutrients that go deep to the root causes of health imbalances and become powerful tools for vibrant health and well being.
• L-Lysine is one of 9 essential amino acids that cannot be made in the body. It is the basic raw material for carnitine synthesis.
• L-Proline can be made in the body, but low-protein/vegetarian diets may not always promote optimal L-proline production.
• L-Lysine and L-proline amino acids are the precursors of hydroxylysine (HL), and hydroxyproline (HP), two constituents of collagen.