• Product Code: XNS-164
  • Availability: In Stock
  • From 10.95€

Capsules 500mg

  • L-Phenylalanine

L-Phenylalanine is an essential amino acid for the human body and a direct precursor to the neuromodulator phenethylamine. It is classified as a neutral and nonpolar due to the inert and hydrophobic nature of the benzyl side chain. As the body is unable to produce it itself, it must rely on external uptake through food or supplements.

It is a critical amino acid for the proper function of the central nervous system as it is used to produce various proteins as well as the formation and synthesis of a range of neurotransmitters such as epinephrine, dopamine and norepinephrine.

L-Phenylalanine is chemically a precursor for tyrosine, the monoamine neurotransmitters dopamine, epinephrine (also known as adrenaline) and norepinephrine (also known as noradrenaline) and the skin pigment melanin.

L-Phenylalanine can be found naturally mammal breast milk and is used in the manufacture of food and drink products. 


  • Improvement of Memory
  • Enhancement of  overall alertness
  • Improvement learning capacity
  • Boost of the central nervous system
  • Works as pain reliever with migraines and other headaches
  • Improvement of mood
  • Helps with Anxiety
  • Helps with Depression


L-phenylalanine is administered orally. 


As per studies and research, Dosages may range anywhere between 100 mg to 5000 mg per day. Typical dosages however are somewhere between 1000 to 2000 mg per day


L-phenylalanine can be stacked with other nootropics of choice for increased effect. 


While L-Phenylalanine is considered to be generally safe and well tolerated by users, there are some possible associated side-effects such as nausea, headaches and heart burn. It also recommended that L-Phenylalanine should not be consumed by people who are under anti-psychotic medication and specific anti-depressants (more specifically monoamine oxidase inhibitors). We recommend to consult your medical practitioner in such cases if you want add this supplement to your stack.


L-phenylalanine is an unregulated substance and freely available. 

Tags: Mood, learning, memory, attention, painkiller

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