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NOW Foods

L-Phenylalanine, 500 mg, 120 Veg Capsules

4.7 · 2285 reviews
1,300 ₽

Nervous System Support Free-Form Non-GMO A Dietary Supplement Vegetarian/Vegan Kosher Amino Acids Family Owned Since 1968 GMP Quality Assured L-Phenylalanine is an essential amino acid that is necessary for the synthesis of proteins. Because L-Phenylalanine can be readily converted into the amino acid tyrosine, which forms part of the structure of the neurotransmitters dopamine and norepinephrine, it is important for the maintenance of a healthy nervous system.

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Nervous System Support Free-Form Non-GMO A Dietary Supplement Vegetarian/Vegan Kosher Amino Acids Family Owned Since 1968 GMP Quality Assured L-Phenylalanine is an essential amino acid that is necessary for the synthesis of proteins. Because L-Phenylalanine can be readily converted into the amino acid tyrosine, which forms part of the structure of the neurotransmitters dopamine and norepinephrine, it is important for the maintenance of a healthy nervous system.

Customer reviews

5.0
verified purchase
Essential Nutrient To Battle Depression

This is a must-have for anyone experiencing mild depression. Start with one capsule first thing in the morning. Over a few weeks, move up to two in the morning and one in the afternoon. MUST be taken on an empty stomach. This is the first ingredient in your arsenal against depression. Also helpful are 5-htp (take at bedtime); B-complex; DMAE (I prefer first thing in the morning); acetyl l-carnitine; vinpocetine; vitamin D, SAMe and fish oil. L-Phenylalanine works by supplying the brain with nutrients needed to produce noradrenaline. It gives a feeling of being much more energetic and alert.

4/27/2019
5.0
verified purchase
Must have

In this modern world which robs you of your dopamine this supplement is a must have to increase bioavailability I recommend cracking the pill open and emptying the powder into your mouth underneath your tongue this way it bypasses the stomach and is directly absorbed into your blood the flavour can be somewhat unpleasant but if your a avid coffee drinker or a smoker it’ll be no problem for you just hold it there untill it’s absorbs usually 30minutes.

1/6/2025
5.0
verified purchase

Effective good quality ingredient n size a unique protein in a OK package that benefits mental health with my diet n composition n physical training to increase my muscle n mental energy with no taste. I suggest this with coffee n honey to be more effective this assists with depression

5/31/2023
5.0
verified purchase

NOW Foods L-Phenylalanine (500 mg, 120 Veg Capsules) offers high-quality, free-form L-Phenylalanine for optimal absorption. It helps boost mood, focus, and mental clarity by supporting dopamine and other neurotransmitters. The formula is vegan, non-GMO, and made in a GMP-certified facility—great for natural cognitive and nervous system support.

6/3/2025
5.0
verified purchase
Great Mood Support and Focus!

I’ve been using L-Phenylalanine from NOW Foods for a few weeks, and I’m very impressed with the results! This supplement has made a noticeable difference in my focus, mood, and energy levels. It’s perfect for anyone needing a natural boost for mental clarity and a positive mood. The 500 mg per capsule is a great dosage, and the fact that they’re veggie capsules makes them easy to digest. I’ve noticed better concentration during my workday and a more stable mood overall. Highly recommend it!

3/14/2025
5.0
verified purchase
Excellent nervous system support

L-phenylalanine is a great benefit to your nervous system. The composition of the capsules are made with quality ingredients. So the size of the capsules are easy to swallow and have no taste. L-phenylalanine can benefit weight, mood, energy and skin. It’s great to add to your diet in between meals.

10/14/2022
5.0
verified purchase
L-P

i took this supplement and it as noticeable difference in my focus, mood, and energy levels. It’s perfect for anyone needing a natural boost for mental clarity and a positive mood. NOW food never disappoints and i would buy the again i like to take this with nootropics like gingko it really does work

11/25/2025
5.0
verified purchase
Прекрасно!

Super product, I will definitely order it again, I recommend it to everyone, the packaging is of high quality, and the ingredients are excellent. Fast delivery, everything arrived in good condition and was well packaged !!!

11/5/2025
5.0
verified purchase
Dopamine boost

Clean, steady support for motivation and mental stamina, especially on demanding days. I like taking one in the morning and one mid-day; there’s no crash or wired feeling. Capsules are lightweight, taste-neutral, and easy on the stomach. Great value for the count and a dependable staple in my focus stack.

9/29/2025
5.0
verified purchase
Helps with Mood and Focus

I've taken NOW Foods L-Phenylalanine 500 mg for a month, and it supports my mood and mental clarity nicely. One capsule daily gives a gentle energy lift without jitters. The veg capsules are easy to swallow, no fillers, and great value at 120 count. Clean, reliable supplement for daily use. Rating: 5/5 Stars

9/23/2025