White crystalline powder
|Loss on drying||
|Residue on ignition||
|Heavy metals (Pb)||
|Other amino acids||
L-tyrosine is an amino acid your body uses to make proteins, neurotransmitters, and other vital compounds. Your body can make it from another amino acid, phenylalanine. You can also get it from good protein sources such as cheese, meat, eggs, and beans.
N-acetyl-L-tyrosine (NALT or NAT) is a derivative of L-tyrosine promoted for its supposedly higher absorption and efficacy. People use it as a supplement to boost their physical and mental performance.
N-acetyl-l-tyrosine is a different form of l-tyrosine, an amino acid your body uses to build proteins and neurotransmitters.
The potential health benefits discussed below refer to L-tyrosine if not stated otherwise. Although NALT is a source of L-tyrosine, it may not have the same health effects.
How It Works
A portion of ingested NALT turns into L-tyrosine, an amino acid with promising nootropic and stimulant effects. L-tyrosine increases neurotransmitters known as catecholamines: dopamine, norepinephrine, and epinephrine.
They play central roles in your mental health, cognition, behavior, and stress response. The body needs a steady supply of tyrosine to maintain their production and keep physical and cognitive performance at peak levels.
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L-tyrosine may boost wakefulness, memory, and cognition under stress. Users attribute the same benefits to NALT, but clinical evidence is lacking.
However, acetylation of amino acids is a well-known and powerful tool for boosting their brain uptake and stability, which often unlocks new health benefits. N-acetyl-cysteine (NAC) and acetyl-DL-leucine both have beneficial effects on the brain and mental health.
Future research should investigate the potential advantages of the acetylated form of L-tyrosine.
L-tyrosine remains a better choice for oral supplementation in light of the available evidence, but the future may hold more promise for NALT.