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Item #: 115056
Reg. Price: $21.95
Our Price: $15.97

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Jarrow Formulas L-Tryptophan Peptide uses PepForm technology.  

L-tryptophan is an essential amino acid and must be obtained from food or supplements. L-tryptophan is metabolized to serotonin (5-hydroxytryptamine) and melatonin, which is important for relaxation, restful sleep and positive mood. Supports Relaxation, Positive Mood & Sleep.

L-Tryptophan is an essential amino acid important in human nutrition for the synthesis of melatonin and serotonin, hormones regulating mood and stress response.  L-Tryptophan helps support relaxation, sleep, positive mood and immune function.  As an essential amino acid, it is not synthesized by the body and must be obtained from the diet. 

L-Tryptophan can help you sleep. Studies dating back to the late 1970s have demonstrated that taking between 1 and 15 grams of tryptophan at bedtime can help you fall sleep. Those who take tryptophan at bedtime are more likely to wake up with increased alertness, to have clearer thinking, and to perform better on attention-requiring tasks. Unlike sleeping pill drugs, tryptophan induces sleepiness but does not impair performance or produce dependence, nor does it make it harder to be roused from sleep when necessary.

 L-Tryptophan helps mood and stress.

  • Grumpiness, irritability, stress, and anxiety are common in aging adults.
  • Sleep disorders, depression, post-traumatic stress disorder, and suicidal thinking have all been traced to depletion of brain levels of the neuro-transmitter serotonin, which is responsible for maintaining an up mood.




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