Nutricost L-Phenylalanine – 500mg, 180 Capsules | Mood & Focus

Phenylalanine is the essential amino acid the body converts into tyrosine, and from there into dopamine, noradrenaline and adrenaline. That chain is why it shows up in mood and focus formulas. People with PKU must avoid it entirely.

Why people take it

• Precursor to tyrosine and the catecholamine neurotransmitters
• Taken for mood, drive and mental focus
• Not suitable for anyone with phenylketonuria (PKU)

Product details

• 500mg per serving
• Form: Capsules
• 180 capsules per bottle
• Brand: Nutricost

How to take

Take 500mg on an empty stomach in the morning. Avoid if you have PKU.