L-Tryptophan In Canada

L-Tryptophan is a large neutral amino acid essential to human metabolism because it is the metabolic precursor of serotonin (a neurotransmitter), melatonin (a neurohormone), and niacin (vitamin B3) which assist in the regulation of sleep, positive mood and immune function. L-Tryptophan is not synthesized by the body and must be...

Life Choice L-Tryptophan (90 VCaps)

$47.94
$39.95
Save 17%
Life Choice

Description Ingredients Suggested use Life Choice L-Tryptophan 220mg+50mg B-6 Tryptophan is an essential amino acid, used by the brain to prod...

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$47.94
$39.95
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NOW L-Tryptophan 220 mg (60 VCaps)

$15.12
$12.60
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NOW

Description Ingredients Suggested Use Source of an essential amino acid for the maintenance of good health.L-Tryptophan is a large neutral amin...

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$15.12
$12.60
Save 17%

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