L-Proline L-proline is a non-essential amino acid that is synthesized by the human organism from glutamic acid. Recommended dosage: approx. 1 g daily with sufficient liquid Storage: thanks to our packaging anywhere at room temperature, clean and dry, away from direct sunlight possible. Packing: Resealable stand-up pouch Note: The specified recommended daily intake must not be exceeded. Dietary supplements are not a substitute for a balanced and varied diet and a healthy lifestyle. Keep out of reach of small children.