L-Phenylalanine has many potential benefits for brain as well as overall health. Supplementing L-phenylalanine provides with a number of key benefits to the brain including improving memory, enhancing overall alertness, and probably expanding learning capacity. The overall nervous system also works more potently. L-phenylalanine is also used for many neurological disorders. It helps people with depression, bipolar disorder, hyperactivity, and Parkinson’s disease.
L-phenylalanine is also believed to work as an effective pain reliever. It is very effective for migraines and other headaches. Also it helps reduce the lower back and neck, arthritis, and menstrual cramps.
The common health benefits of L-phenylalanine include:

Reduces depression [2]
Helps with vitiligo [3]
Increases dopamine levels [4]
Improves cognitive function [5]
Helps people with attention deficit hyperactivity disorder (ADHD) [6]
Helps people with Parkinson’s disease [7]
Helps with multiple sclerosis [8]
Promotes weight loss [9]
Helps people with Alzheimer’s disease [10]

A number of neurotransmitters produced by L-phenylalanine supplement are effective at improving overall mood and impart a feeling of greater well-being which can help you with stress levels, relieve anxiety, and even reduces depression.