Proline is the precursor of hydroxyproline, which is manufactured into collagen, tendons, ligaments, and heart muscle by the body. Proline is involved in wound healing, plays important roles in molecular recognition, and is an important component in certain medical wound dressings that use collagen to stimulate wound healing. Proline helps in the healing of cartilage and the strengthening of joints, tendons, and heart muscle, and it works with vitamin C to promote healthy connective tissues.
| Micromole per liter | µmol/L = mcmol/L = umol/L = µM/L = mcM/L = uM/L = micromol/L |
| Milligram per liter | mg/L = millig/L = milligram/L = mg/liter |
| Milligram per deciliter | mg/dL = millig/dL = milligram/dL |
| Milligram per 100 milliliters | mg/100mL = millig/100mL = milligram/100mL |
| Milligram percent | mg% = millig% = milligram% |
| Microgram per milliliter | µg/mL = mcg/mL = ug/mL = microg/mL = microgram/mL |