5-HTP
5-Hydroxytryptophan, also known as oxitriptan, is a naturally occurring amino acid and chemical precursor as well as a metabolic intermediate in the biosynthesis of the neurotransmitter serotonin.
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$22.37Natural Factors - Stress-Relax, Tranquil Sleep, 60 Chewable Tablets
Natural FactorsDietary Supplement Advanced Fast Acting Formula 5-HTP, Suntheanine & Melatonin Recommended by Dr. Michael Murray Purity & Potency Guarante...
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