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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$27.99Irwin Naturals - Sunny Mood With 5-HTP, Plus Vitamin D3, 80 Liquid Soft-Gels
Irwin NaturalsUplifting Feel Good Formula With 200 mg of Relaxing 5-HTP for Serotonin Production Dietary Supplement No Preservatives Added Pass Quality Tested G...
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