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The Best L Phenylalanine 500 Mg of 2023 – Reviewed and Top Rated

2,036 Reviews Scanned

SaleRank No. #1
NOW Supplements, L-Phenylalanine 500 mg, Nervous System Support*, Amino Acid, 120 Veg Capsules
  • FREE-FORM/VEGAN CAPSULES: Essential amino acid necessary for the synthesis of proteins.*
  • NERVOUS SYSTEM SUPPORT*: Readily converted into the amino acid tyrosine, forming part of the structure of the neurotransmitters dopamine and norepinephrine, making it important for the maintenance of a healthy nervous system.*
  • CERTIFICATIONS/CLASSIFICATIONS: Soy Free, Nut Free, Vegan/Vegetarian, Non-GMO, Egg Free, Dairy Free, Made without Gluten
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968
Rank No. #2
Life Extension D L-Phenylalanine 500 mg - Enhance Mood, Nourishing Memory, Focus & Cognitive Performance Support - Non-GMO, Gluten-Free - 100 Vegetarian Capsules
  • ESSENTIAL NUTRIENT FOR A HEALTHY BRAIN - Phenylalanine is a vital amino acid that is crucial to cognitive performance and overall well-being. The liver converts it to L-tyrosine, which your nervous system then uses to make important neurotransmitters and hormones, including dopamine, norepinephrine and adrenaline (epinephrine).
  • MOOD & BRAIN HEALTH - Studies show that supplementing with phenylalanine encourages healthy neurotransmitter production and brings a wide range of cognitive health benefits. That’s because the body uses phenylalanine to make neurotransmitters that regulate mood, memory and focus, promoting a healthy mood and overall cognitive performance.
  • NOURISHING PROTECTION FOR YOUR BRAIN CELLS - Research shows that phenylalanine supplementation also helps protect your delicate brain cells (neurons). That’s because your body uses it to produce norepinephrine, which in addition to acting like a chemical messenger, this neurotransmitter also promotes a healthy inflammatory response, protects neurons from oxidative stress caused by free radicals, and encourages healthy brain cell growth and connectivity.
  • INGREDIENTS MATTER - Sourced using only the finest raw ingredients with the purity and potency your body deserves. The majority of our products are non-GMO, gluten-free and manufactured in the USA—and a Certificate of Analysis is available for every product we produce.
  • LIVE YOUR HEALTHIEST LIFE - For over 40 years, we’ve been developing advanced, effective formulas made with the highest standards and based on the latest scientific findings. We believe the answers to a healthier, richer life are within reach, and that rigorous scientific research is the path to get us there. Our formulations are created using the ingredients and dosages used in the studies that inspired them, ensuring that maximum bioavailability and efficacy is achieved.
Rank No. #3
Nutricost L-Phenylalanine 500mg; 180 Capsules
  • 500mg of L-Phenylalanine Per Capsule
  • Only High Quality L-Phenylalanine
  • 180 Capsules Per Bottle
  • Non-GMO, Gluten Free
  • Manufactured In a GMP Compliant, FDA Registered Facility
Rank No. #4
BulkSupplements.com L-Phenylalanine Powder - Phenylalanine Supplement - L-Phenylalanine 500mg - L Phenylalanine Powder - Amino Acids Supplement - 500mg per Serving (250 Grams - 8.8 oz)
  • ✨ Daily Essential Amino Acids Boost - Get your daily essential amino acid on with L-Phenylalanine! This Phenylalanine supplement is an essential amino acid that helps promote focus, healthy mood and overall well-being.* Our Phenylalanine powder, or L-Phenylalanine 500mg is a key player in protein synthesis, which can help you stay energized during the day! Plus, this L-Phenylalanine powder works with other amino acids like Tyrosine to keep your wellness in check.
  • ✔️ Supports Cognitive Health! - L-Phenylalanine, or L Phenylalanine, is one of the few neutral forms of Phenylalanine, making our Phenylalanine supplements easier to absorb. Add our L-Phenylalanine powder, or L Phenylalanine, to your routine to help support healthy brain activity and cognitive function.* The perfect addition to any healthy regimen daily!
  • ✔️ Natural Mood & Focus Support - Let our L-Phenylalanine 500mg powder bring positive mood into your life!* This Phenylalanine supplements, in Phenylalanine powder form, helps promote healthy and balanced moods, leaving you feeling uplifted after a long day.* Get the support you need to stay focused throughout the day with 500mg of this Phenylalanine supplement per serving!
  • ✨ Free of Gluten & Fillers - Our L-Phenylalanine powder, or L Phenylalanine powder, is pure & clean and free of gluten, dairy, soy and added sugars to help nourish your body with the essential amino acids it needs. Free of all fillers, additives and artificial flavors, so you know exactly what’s going into your body!
  • ⭐ High Quality - All L Phenylalanine supplement by BulkSupplements are manufactured according to cGMP Standards to ensure the highest quality for manufacturing, packaging, labeling, and holding operations. We third party test our L-Phenylalanine 500mg, or L Phenylalanine Powder, at multiple stages during production, procedures and equipment to ensure compliance, standards and consistency.
Rank No. #5
L-Phenylalanine 500mg 120 Capsules
  • 120 Capsules
  • Serving Size: 1 Capsule
  • 120 Servings Per Container
  • Gluten Free
Rank No. #6
BLUEBONNET NUTRITION L-PHENYLALANINE 500 mg
  • Contains 500 mg of free-form L-Phenylalanine
  • Nervous System Support
  • 30 Vegetable Capsules, 30 Servings
  • Soy-Free, Gluten-Free, Non-GMO, Kosher Certified, Vegan
  • Free of milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat and soybeans. Also free of corn, yeast, gluten, barley, rice, sodium and sugar
Rank No. #7
Metabolic Maintenance L-Phenylalanine (with Vitamin B6) - 500 Milligrams Amino Acid for Mood Support (60 Capsules)
  • Mood Support - The L form of Phenylalanine helps support the normal production of mood-related chemicals in the brain such as dopamine and norepinephrine.*
  • Amino Acid Supplementation - Phenylalanine is an essential amino acid that converts to tyrosine.*
  • Thyroid Support - Tyrosine follows the catecholamine pathway and may offer thyroid support.*
  • Purity, Quality, Potency - No fillers, binders, preservatives, artificial colors or flavors. Vegetarian capsules. No gluten, egg, peanuts, tree nuts, or magnesium stearate. Supplements arrive in BPA-Free glass amber bottles that protect from light contamination.
  • Physician's Choice - The health care professional's choice for high-quality supplements since 1984. We base our products on the latest wellness research and clinical studies, and use third-party testing for all incoming, in-process, and finished product. Products you can trust, at an exceptional value.
Rank No. #8
Bluebonnet Nutrition L-Phenylalanine 500mg, Free-Form Amino Acid, For Nervous System Support*, Soy-Free, Gluten-Free, Non-GMO, Kosher Certified, Vegan, 60 Vegetable Capsules, 60 Servings
  • Contains 500 mg of free-form L-Phenylalanine
  • Nervous System Support
  • 60 Vegetable Capsules, 60 Servings
  • Soy-Free, Gluten-Free, Non-GMO, Kosher Certified, Vegan
  • Free of milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat and soybeans. Also free of corn, yeast, gluten, barley, rice, sodium and sugar
Rank No. #9
Douglas Laboratories L-Phenylalanine 500 mg. | Amino Acid to Support Feelings of Well-Being | 90 Capsules
  • Positive Outlook Support: Supports regulation of the healthy nervous system, in part by facilitating neurotransmitter synthesis.*
  • Positive Outlook Support: Phenylalanine can be used to metabolize two distinct chemicals, phenylethylamine and tyrosine. Phenylethylamine is a neuroamine which may have supportive feelings.*
  • Vitamins/Minerals/Amino Acids: Our vitamins/minerals and amino acid formulas are developed to provide beneficial support in filling nutrient gaps.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential for healthy living, today and in the future.*
Rank No. #10
BESTVITE L-Phenylalanine 500mg (240 Vegetarian Capsules) (2-Pack) - No Stearates - Vegan - Gluten Free - Non GMO
  • MOOD SUPPORT: L-Phenylalanine is a precursor to important neurotransmitters like dopamine, norepinephrine, and serotonin, which play a role in regulating mood, focus, and overall mental wellness.*
  • ENERGY & FOCUS SUPPORT: L-Phenylalanine is involved in the neurotransmitter production which play a crucial role in cognitive processes, such as memory, learning, and mental clarity.*
  • PURE FORMULA: Bestvite L-Phenylalanine contains no stearates, is non-GMO, gluten-free, vegan, and comes free of unwanted added ingredients. Each capsule contains 500 mg of L-Phenylalanine.
  • BESTVITE QUALITY: All Bestvite products are manufactured in the USA according to GMP. The raw materials and all batches of the finished L-Phenylalanine product are tested for purity and potency.
  • NSF GMP CERTIFIED: Bestvite’s facility is NSF/ANSI 455-2 Dietary Supplements Good Manufacturing Practice (GMP) certified. Earning GMP certification from NSF verifies that a manufacturing facility has the proper methods, equipment, facilities, and controls in place to produce dietary supplement products.
SaleRank No. #11
SOLARAY L-Phenylalanine Veg Cap (Btl-Plastic) 500mg | 60ct
  • Let Solaray help you Shine
  • Our goal is to bring all of the earth's healthful nutrients to you
  • Every Solaray product is rigorously tested to ensure you get the results you expect
Rank No. #12
Best Naturals L-Phenylalanine 500 mg 90 Tablets
  • Nervous system supports
  • Pro-Neurotransmitter
  • Promotes positive mood
  • Supports and alert state
  • All Best Naturals products are manufactured in accordance with Good Manufacturing Practices (GMP), among the highest standards in the world -- Proudly Made in USA -- Purity & Potency Guaranteed
Rank No. #13
BULKSUPPLEMENTS.COM L-Phenylalanine Capsules - Phenylalanine Supplement - L-Phenylalanine 500mg - L Phenylalanine - Amino Acids Supplement - 1 Capsule per Serving - 180-Day Supply (180 Capsules)
  • ✨ Daily Essential Amino Acids Boost - Get your daily essential amino acid on with L-Phenylalanine! This Phenylalanine supplement is an essential amino acid that helps promote focus, healthy mood and overall well-being.* Our Phenylalanine capsules, or L-Phenylalanine 500mg is a key player in protein synthesis, which can help you stay energized during the day! Plus, this L-Phenylalanine capsule works with other amino acids like Tyrosine to keep your wellness in check.
  • ✔️ Supports Cognitive Health! - L-Phenylalanine, or L Phenylalanine, is one of the few neutral forms of Phenylalanine, making our Phenylalanine supplements easier to absorb. Add our L-Phenylalanine 500mg capsules to your routine to help support healthy brain activity and cognitive function.* The perfect addition to any healthy regimen daily!
  • ✔️ Natural Mood & Focus Support - Let our L-Phenylalanine 500mg capsules bring positive mood into your life!* This Phenylalanine supplements, in capsules form, helps promote healthy and balanced moods, leaving you feeling uplifted after a long day.* Get the support you need to stay focused throughout the day with 500mg of this Phenylalanine supplement per serving!
  • ✨ Free of Gluten & Fillers - Our L-Phenylalanine capsules, or Phenylalanine capsules, are pure & clean and free of gluten, dairy, soy and added sugars to help nourish your body with the essential amino acids it needs. Free of all fillers, additives and artificial flavors, so you know exactly what’s going into your body!
  • ⭐ High Quality - All L Phenylalanine supplement by BulkSupplements are manufactured according to cGMP Standards to ensure the highest quality for manufacturing, packaging, labeling, and holding operations. We third party test our L-Phenylalanine 500mg, or L Phenylalanine 500 mg, at multiple stages during production, procedures and equipment to ensure compliance, standards and consistency.
SaleRank No. #14
Carlyle L Phenylalanine 1000mg | 200 Capsules | Non-GMO and Gluten Free Formula | Free Form L-Phenylalanine Supplement
  • L-PHENYLALANINE: Quick-release capsules provide 1,000 mg of this essential Amino Acid per serving
  • FREE FORM: Amino Acids in free form are more easily absorbed by the body without competing nutrients
  • ROOTED IN WELLNESS: Carlyle provides premium, honest supplements in your pursuit to healthy living
  • CARLYLE MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
  • NATURALLY FREE OF: Gluten, Wheat, Yeast, Milk, Lactose, Soy, Artificial Flavor, and Non-GMO
SaleRank No. #15
NOW Supplements, L-Tyrosine 500 mg, Supports Mental Alertness*, Neurotransmitter Support*, 120 Capsules
  • SUPPORTS MENTAL ALERTNESS/NEUROTRANSMITTER SUPPORT: Required for the production of the neurotransmitters dopamine, adrenaline, and noradrenaline, as well as for the skin pigment, melanin. Noradrenaline and adrenaline are the main actors in the body’s response to acute stress and with dopamine help support a positive mood and mental alertness.
  • Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
  • PHARMACEUTICAL GRADE/HEALTHY GLANDULAR FUNCTION: L-Tyrosine is especially critical for the normal function of the thyroid gland.
  • CERTIFICATIONS/CLASSIFICATIONS: Dairy free, Egg free, made without gluten, Non-GMO, nut free, soy free
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the now manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
Rank No. #16
SOLARAY DL-Phenylalanine, 500mg | 50-50 Blend of Essential Amino Acids for Nervous System, Mood & Energy Support | 60 VegCaps
  • 50-50 Blend: DL-Phenylalanine is a 50/50 blend of the essential amino acids D-Phenylalanine and L-Phenylalanine
  • Hormone Help: D-Phenylalanine may help support the bodys production of healthy hormone levels
  • Feel Better: L-Phenylalanine may help in production of dopamine, norepinephrine, epinephrine
  • Combo: Intended to support mood, energy levels, nervous system health & healthy stress response
Rank No. #17
BULKSUPPLEMENTS.COM DL-Phenylalanine Capsules - DLPA Capsules, DL-Phenylalanine 500mg - DLPA Supplements, Amino Acid Supplement - Gluten Free, 1 Capsule per Serving, 180 Capsules
  • ✔️Get your Key Essential Amino Acid: Get your daily dose of Phenylanine with our pure & clean DL-Phenylalanine capsules! Phenylalanine is one of the essential amino acid as a building block other proteins. Add this DLPA capsules, in DL-Phenylalanine 500mg, to your daily routine and help overall wellness!*
  • ✔️ Supplements for the Brain: Boost your productivity and stay on top of any activity with DL-Phenylalanine, or DLPA supplements! This DLPA capsules help make it easier to concentrate, focus, and stay alert - perfect for those who need to remain productive but don't want the taking of other supplements!*
  • ✔️ Easy to Take Capsules: Keep your health and wellness in check with out DL-Phenylalanine capsules, that's totally without artificial flavors. Forget about added sugars and unwanted additives - just take 1 capsule per serving, is naturally pure so you can relax worry-free. So go ahead – get back in control with our DLPA supplement!*
  • ✨ Supplements your daily diet: Easily incorporate this supplement into your daily routine by taking 1 capsule and take it with water if you prefer. Boost your diet with our DLPA capsules, or DL-Phenylalanine capsules, for optimal results. All in one easy step! Get ready to take on life like never before!
  • ⭐ High Quality: Get the most out of our DLPA supplement, or DL-Phenylalanine, with pure & high quality. Our strict cGMP standards ensure superior manufacturing, packaging, labeling, and holding operations, while third-party testing at multiple stages ensures compliance and consistency. "
Rank No. #18
Doctor's Best D-Phenylalanine, Supports Mood, Nervous System, Non-GMO, Vegan, Gluten Free, 500 mg, 60 Veggie Caps
  • D-phenylalanine is reported to inhibit an enzyme that degrades enkephalins
  • D-phenylalanine is a non-protein amino acid related to the essential amino acid L-phenylalanine
  • Vegetarian
  • Label images may vary
  • During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.
Rank No. #19
BESTVITE DL-Phenylalanine 500mg (120 Vegetarian Capsules) - No Stearates - No Fillers - Vegan - Gluten Free - Non GMO
  • MOOD SUPPORT: DL-Phenylalanine is a precursor to important neurotransmitters like dopamine, norepinephrine, and serotonin, which pay a role in mood, focus, and overall mental wellness.*
  • ENERGY & FOCUS SUPPORT: DL-Phenylalanine is involved in the neurotransmitter production which play a crucial role in cognitive processes, such as memory, learning, and mental clarity.*
  • PURE FORMULA: Bestvite DL-Phenylalanine contains no stearates, is non-GMO, gluten-free, vegan, and comes free of unwanted added ingredients. Each capsule contains 500 mg of DL-Phenylalanine.
  • BESTVITE QUALITY: All Bestvite products are manufactured in the USA according to GMP. The raw materials and all batches of the finished DL-Phenylalanine product are tested for purity and potency.
  • NSF GMP CERTIFIED: Bestvite’s facility is NSF/ANSI 455-2 Dietary Supplements Good Manufacturing Practice (GMP) certified. Earning GMP certification from NSF verifies that a manufacturing facility has the proper methods, equipment, facilities, and controls in place to produce dietary supplement products.
SaleRank No. #20
Solgar DLPA 500 mg, 100 Vegetable Capsules - Free Form DL-Phenylalanine - Supports Central Nervous System - Vegan, Gluten Free, Dairy Free, Kosher - 100 Servings
  • Free Form DL-Phenylalanine; DL-phenylalanine is a mixture of both the D and L forms of the amino acid phenylalanine
  • Nervous System Support; DLPA may have the unique ability to reduce the activity of the enzyme enkephalinase in the central nervous system, thereby sparing feel good hormones such as endorphins and enkephalins
  • Optimal Absorption; This formulation provides free form DLPA to promote optimal absorption and assimilation
  • Gluten, Wheat & Dairy Free; Solgar DLPA is vegan, kosher, and free of: gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor, sweetener, preservatives, and color; Suitable for vegetarians
  • The Gold Standard: For over 70 years, Solgar has been committed to quality, health, and well-being. Our mission is to create the finest nutritional supplements in small batches, through tireless research, using only the finest raw materials

Last update on 2023-08-05 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: What is phenylalanine used for?

A: Phenylalanine is used for a skin disease called vitiligo , depression, attention deficit-hyperactivity disorder (ADHD), Parkinson ‘s disease, multiple sclerosis, pain, acupuncture anesthesia, osteoarthritis, rheumatoid arthritis, weight loss, and alcohol withdrawal symptoms.

Q: What is phenylalanine function?

A: Phenylalanine is an essential aromatic amino acid in humans (provided by food), Phenylalanine plays a key role in the biosynthesis of other amino acids and is important in the structure and function of many proteins and enzymes. Phenylalanine is converted to tyrosine , used in the biosynthesis of dopamine…

Q: What is phenylalanine made from?

A: Like the other 19 or 20 amino acids, phenylalanine is a nitrogen-containing molecule. It is composed of an amine group and a carboxyl group, and an identifying side chain.

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