Source Naturals

Source Naturals Serene Science L-Tryptophan

60 caps - 500 mg

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  • Regular price $12.08
  • SRP $22.50

Special Order Item — Usually ships in 1-5 days

UPC 021078025429


The essential amino acid L-tryptophan is the precursor for the synthesis of both melatonin and serotonin, a hormone and a neurotransmitter involved with mood and stress response and sleep/wake cycles. It helps support relaxation, restful sleep, and positive mood. If needed, l-tryptophan converts to niacin in the body, an important B vitamin. Source Naturals L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality.