An Essential Amino Acid. Suitable for Vegetarians. Hypoallergenic. L-Phenylalanine an essential amino acid is a precursor of the amino acid tyrosine and a whole series of neurotransmitters and hormones. Phenylalanine is first converted to tyrosine which becomes L-dopa which converts to norepinephrine a key neurotransmitter and an adrenal hormone. L-Phenylalanine is also a direct precursor of PEA (phenylethylamine) another important neurotransmitter.
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1 out of 3(33%)customers recommend this product.
Customer reviews for Source Naturals Free Form L-Phenylalanine -- 500 mg - 100 Tablets
Review 1 for Source Naturals Free Form L-Phenylalanine -- 500 mg - 100 Tablets
"Natural Phenylalanine is a good, natural appetite suppresant. I take one in the morning, after breakfast, and I feel satiated all day. Then, at night, if I feel like munching, I take another one. Just be sure that you get natural Phenylalanine, with an L."
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Ratings-only reviews for Source Naturals Free Form L-Phenylalanine -- 500 mg - 100 Tablets