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Action - Neurotransmitter precursor

Supplements for Oral Use

  • 5-HTP RatingRatingRating

    5-HTP is a neurotransmitter precursor; increases neurotransmitter production. Take 200-300 mg of 5-HTP daily, in divided doses before meals, for many months.

  • Tryptophan RatingRatingRating

    Tryptophan is a neurotransmitter precursor; increases neurotransmitter production. Take 2-3 g of tryptophan daily, in divided doses, for many months.

  • l-Phenylalanine RatingRating

    l-Phenylalanine is a neurotransmitter precursor; increases neurotransmitter production. Take 0.5-2.0 g of l-phenylalanine daily, in divided doses, between meals, for many months.
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