Source Naturals, L-Phenylalanine, 500 mg, 100 Tablets
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- Dietary Supplement
- Free Form
- An Essential Amino Acid
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.
1 to 2 tablets daily.
Dibasic calcium phosphate, stearic acid, colloidal silicon dioxide, modified cellulose gum, and magnesium stearate.
Suitable for vegetarians and Hypoallergenic: contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.
Contains phenylalanine. Not to be used by phenylketonurics, women who are pregnant, may become pregnant, or breastfeeding, or with antidepressant drugs such as MAOIs or SSRIs. If you have chronic high blood pressure, take after meals and/or consult your health care professional.
|Serving Size: 2 Tablets|
|Servings Per Container: 50|
|Amount Per Serving||%DV|
|†Daily Value not established|
Good, but I prefer tyrosine
Good, but I prefer tyrosine
This is just a bit too activating for me, I get a light headache from it. Tyrosine works better for me. Caution if you have high anxiety or are prone to mania, seems to disrupt us a little more.
Very happy with the product and the pill is the proper amount that I need, without taking a whole bunch of pills to get the amount I need. Very impressed. And the quantity is a good thing too. Will definitely order more!!
Alternative to pharmaceutical drugs.
Posted by 5534130015891278346 on Dec 24, 2016
My husband is currently taking this product 3x3 times a day for Parkinson's. It seems to work for him and lets hope he does for a long time.
Good quality amino acid supplementation
Posted by 4985174333479468959 on Nov 03, 2016
I purchased this product on behalf of a friend, who had serious health issues and had been prescribed a mix of amino acids to overcome it (Round-up toxicity). She got on well, and felt the amino acids helped her greatly.
truly effective. Quality is not excellent, fair price.
Posted by RudyMARYBallet on Jul 15, 2016
It has effect as L-phenylalanine certainly. easy price and quality is not special. so, suitable for quality.
very nice product
Posted by HsienHsien on Apr 15, 2016
When I am very nervous, I will take a tablet of F and my nervous will reduce in few minute.