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Provides support for upper respiratory tract health
placebo-controlled study
• Promotes healthy antioxidative status
*This statement has not been approved by the Food and Drug Administration
l-Tryptophan Size:90C Provides support for upper respiratoryDescription Enhances serotonin synthesis to support emotional well being and restful sleep The essential amino acid l tryptophan is a serotonin precursor. Research indicates that l tryptophan supplementation may support emotional well being and restful sleep. In a double blind, placebo controlled study, l tryptophan supported healthy emotional processing and promoted positive outlook in women. In a separate study, it supported healthy mood and
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