Is there a different between phenylalanine and l-phenylalanine? Why does the L have to be in front of phenylalanine?

Yes. There are two forms of phenylalanine: D-Phenylalanine and L-Phenylalanine. They are mirror forms of each other - identical except one is 'left-handed' (L-) the other 'right-handed' (D-). (This is L/D dichotomy is true for all amino acids). D-Phenylalanine is synthetic and generally used more for reducing pain, while L-Phenylalanine is the naturally occurring form that is more readily converted into dopamine and norepinephrine and used to help with mood, energy and focus.

How does this compare to Naltrrxone?

Reading the reference to Naltrexone, one has nothing to do with the other. L-Phenylalanine is a brain food supplement.

How does this compare to gaba?

I use both for different reasons. I use GABA when I need to settle my mind down. I have anxiety and gabba really helps that. I take L- Phenelaline (2-100mg) with a B6 and that specifically helps the fact that I can’t swallow without food getting stuck. I do that in the morning and evening where as GABA you can take when ever and it seems to work within 20 minutes. I find that the GABA-effects work for about 3-4 hours then I may need to take another one (750mg).

Is this product equivalent of Phentermine

We do not have any information on pharmaceuticals. 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 neurotransmittters dopamine and norepinephrine, it is important for the maintenance of a healthy nervous system.

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NOWSupplements, L-Phenylalanine 500 mg, Nervous System Support*, Amino Acid, 120 Veg Capsules

NOWSupplements, L-Phenylalanine 500 mg, Nervous System Support*, Amino Acid, 120 Veg Capsules

Product ID: 255727859

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Brand
NOW
Flavour
Unflavored
Primary supplement type
multivitamin
Unit count
120 Count
Item form
Capsule
Item weight
0.1 Kilograms

🌱120 vegan-friendly capsules, plant-based purity

💊500 mg pure L-Phenylalanine per capsule

🚫Free from soy, nuts, gluten, dairy, and eggs

Description

🧠 Elevate your mind and mood with every vegan capsule!

TRUSTED QUALITY FROM NOW - Reputable brand delivering consistent, high-quality amino acid supplements
CLEAN CONSCIOUS FORMULA - Certified vegan, non-GMO, and allergen-free for guilt-free supplementation
PURE PLANT BASED CAPSULES - 100% vegan capsules align with your ethical and health values
POWER YOUR NEUROTRANSMITTERS - Supports dopamine & norepinephrine synthesis for sharp focus and mood balance
OPTIMAL DOSAGE MAXIMUM IMPACT - 500 mg per capsule ensures effective nervous system support with every serving

NOW Supplements L-Phenylalanine delivers 500 mg of a vital amino acid per vegan capsule, supporting neurotransmitter production and nervous system health. Free from common allergens and made with non-GMO ingredients, this 120-count bottle is designed for adults seeking clean, effective nervous system support.

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Additives	Amino Acid
Allergen Information	Dairy Free, Egg Free, Gluten Free, Nut Free, Soy Free
Weight	0.24 Kilograms
Volume	100 Milliliters
Units	120 Count
Serving Recommendation	1 Veg Capsule
Brand	NOW
Format	Capsule
Age Range Description	Adult

NOWSupplements, L-Phenylalanine 500 mg, Nervous System Support*, Amino Acid, 120 Veg Capsules

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