NALT vs L-Tyrosine
Which form to choose for dopamine and cognitive performance?
L-Tyrosine and NALT (N-Acetyl L-Tyrosine) are two forms of the same amino acid — precursor to dopamine and norepinephrine. Yet their profiles differ. This guide helps you choose the right form for your goals.
Head-to-head comparison
| Criteria | L-Tyrosine | NALT 350mg |
|---|---|---|
| Form | Free amino acid | Acetylated form (N-Acetyl) |
| Solubility | Low in water | High — better absorption |
| BBB crossing | Moderate (AA competition) | Optimized via NAATs transporters |
| Effective dose | 500 – 2,000 mg | 300 – 500 mg |
| Onset | 60 – 90 min | 30 – 60 min |
| Cost/dose | Cheaper in absolute | More economical at equivalent dose |
| Common use | Diet, protein foods | Targeted cognitive supplements |
Shared mechanisms
Dopamine Precursor
Tyrosine → L-DOPA → Dopamine (TH enzyme). Dopamine regulates motivation, pleasure, decision-making and reinforcement learning.
Norepinephrine Precursor
Dopamine → Norepinephrine (DBH). Norepinephrine modulates attention, alertness and stress response — key in the prefrontal cortex under cognitive load.
Stress resilience
Under acute stress (cold, noise, sleep deprivation), catecholamine stores deplete. Tyrosine compensates this deficit and maintains cognitive performance.
Recommended protocol — NALT 350mg
Fasted, 30–60 min before a demanding work, study or sports session
350 mg (1 Nootropic.ma capsule) — sufficient thanks to superior bioavailability
Vitamin B6 (cofactor for catecholamine synthesis) and magnesium
Protein-rich meals (amino acid transporter competition)
3–5 days/week — no known tolerance, but cycling recommended
Who should choose NALT?
NALT 350mg ✓
Targeted cognitive goals (focus, motivation, stress resilience)
GI sensitivity (superior solubility = less discomfort)
Precise protocol with controlled doses
Optimized budget at equivalent dose
L-Tyrosine basique
Already protein-rich diet (eggs, meat, legumes)
Basic supplementation without specific cognitive goal
Very tight budget (bulk price)
Frequently asked questions
Do not use if you take MAOI medications or psychiatric treatments without medical advice. Tyrosine may interact with certain thyroid medications.
