Working...
L-Phenylalanine, an essential amino acid, is a precursor of the amino acid tyrosine, and to 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..
Full price 12.98
Savings 30%

L-Phenylalanine (500 mg-100 tabs)*

price Price is too low to show. Add it to your cart
Buy 3 - Get free delivery on whole order

Source Naturals

L-Phenylalanine

L-Phenylalanine, an essential amino acid, is a precursor of the amino acid tyrosine, and to 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.

Suggested Use:1 to 2 tablets daily.

Supplement Facts
L-Phenylalanine
Serving Size:1 Tablet
  APS%DV
Calcium 99mg 10%
L-Phenylalanine 1g 0

Other Ingredients:dibasic calcium phosphate, stearic acid, colloidal silicon dioxide, modified cellulose gum and magnesium stearate.
Suitable for vegetarians.

Warning: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.
Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

By Mandy Wilson - Flag 
Comments? Question?
Updated Mar. 31, 2016, about 8 years ago

SKU: SN0161
UPC: 021078001614
Distributed or manufactured from Source Naturals. See more Source Naturals products.
L-Phenylalanine (500 mg-50 tabs)*
L-Phenylalanine (500 mg-50 tabs)* Source Naturals


 5.08 
Source Naturals
Amino Athlete (1000 mg 50 tabs)*
Amino Athlete (1000 mg 50 tabs)* Source Naturals


 9.79 
Source Naturals
L-Tyrosine (500 mg-100 tabs)*
L-Tyrosine (500 mg-100 tabs)* Source Naturals


 9.45 
Source Naturals

Be the first to tell us your thoughts.Add your testimonial

Questions and answers:

Asked on: October 8, 2019
Question: Propecia Dermatologist Approved a hrefhttp:buycheapciall.comcialis canadaa zoloft Buy Claravis Accutane Levitra Chez La Femme

Explore More Products

L-Tryptophan (500 mg-120 tabs)*
L-Tryptophan (500 mg-120 tabs)* Source Naturals


 25.00 
Source Naturals
L-Tyrosine (500 mg-100 tabs)*
L-Tyrosine (500 mg-100 tabs)* Source Naturals


 9.45 
Source Naturals
Wellness Larch Extract (1,000 mg-60 tabs)*
Wellness Larch Extract (1,000 mg-60 tabs)* Source Naturals


 18.19 
Source Naturals

phenylalanine l neurotransmitter precursor, tyrosine phenylethylamine 99mg phenylketonurics, chronic amino 1g hormones
1. Statements and claims on Seacoast.com have not been evaluated by the FDA and are not intended to treat or diagnose any ailment or disease.

What interests you?

Living Green Liquid-Gel Multi for Women (90 softgels)* Irwin Naturals

Ferrum phosphoricum 9C Boiron

Krebs Magnesium-Potassium Chelates (60 tabs)* Enzymatic Therapy

AdrenaSense (120 vegetarian capsule)* Natural Factors

Bone Renewal (150 capsules)* The Synergy Company

MSM Topical Cream (4 oz ) Metabolic Response Modifiers

Bone-Up (240 capsules) Jarrow Formulas

Estroven Maximum Strength Plus Energy (28 caplets) Amerifit

Could Chelation Be The Answer To Defeating Autism?
Modified Citrus Pectin and Alginates are all-natural products that work in a very unique way to both chelate and eliminate heavy metals from the body.

Pure Factors Pro IGF T 1100 (30 ml) Pure Solutions

Kava Kava 450 mg (60 Vcaps) Natural Balance

Sen Sei Menthol Rub Christophers Original Formulas

Suprema Vitamin C Complex (100 tabs) Seacoast Vitamins