Source Naturals

Source Naturals L-Phenylalanine

100 tabs - 500 mg

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  • Regular price $9.45
  • Will be in stock after

UPC 021078001614

Nonstock, Special Order Item - Usually ships in 2-5 days


L-Phenylalanine, an essential amino acid, is a precursor of the amino acid tyrosine, as well as for a whole series of neurotransmitters and hormones. Phenylalanine is first converted to tyrosine, which becomes L-dopa, which then converts to norepinephrine, a key neurotransmitter and an adrenal hormone. L-Phenylalanine is also a direct precursor of PEA (Phenylethylamine), another important neurotransmitter.