It is one of the important components required for human protein composition.

It is widely used and can be used to synthesize new drugs and anecopritic acid that treats hypertension and myocardial failure.

In the field of organic chemistry, it is used for asymmetric synthesis, ammonia, polymerization reactions, and hydrolysis reactions as catalysts.

In the field of agricultural production, it can be used as a crop supplement. In food processing, because L-PRO has a special short aroma, it is added to food to improve the flavor and taste of food.