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    amino_acid
    beginner
    semi synthetic

    N-Acetyl L-Tyrosine (NALT)

    Acetylated form of L-Tyrosine, a direct precursor to dopamine, norepinephrine, and epinephrine. Best under stress or sleep deprivation.

    2h half-life 20min onset water-soluble budget

    Quick Facts

    Common Dose

    500mg

    Dose Range

    300–750mg

    Frequency

    1-2x daily, on empty stomach

    Half-Life

    2 hours

    Onset

    20 min

    Duration

    3 hours

    Cycling

    Not required

    Legal Status

    otc_supplement

    How It Works

    Provides tyrosine for catecholamine synthesis. Most effective when dopamine stores are depleted by stress or stimulant use.

    Neurotransmitter Pathways

    dopaminenorepinephrineepinephrine

    Effects & Benefits

    focus_under_stress
    motivation
    working_memory
    stress_resilience

    Dosing Guide

    Beginner
    300mg
    Standard
    500mg
    Advanced
    750mg

    ⚠️ Start low and increase gradually. Individual responses vary.

    Side Effects & Safety

    Potential Side Effects

    HeadacheGI upset on empty stomachRestlessness at high doses

    Contraindications

    HyperthyroidismMAO inhibitor use

    Drug Interactions

    maoislevodopathyroid_meds

    What the Community Says

    "Recommended primarily for high stress or sleep deprivation. Not a feel-good supplement in normal conditions."

    positive
    Community ranking: #11 most discussed

    Based on analysis of r/Nootropics, r/StackAdvice, and r/biohackers

    Research & Evidence

    Tyrosine improves cognitive performance under stressful conditions

    2015 — Journal of Psychiatric Research

    Improved cognitive flexibility under demanding conditions

    PubMed

    Best Stacked With

    Avoid Pairing With

    Where to Buy

    Estimated cost: $10/month

    Cycling Protocol

    No cycling required — can be taken daily.

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    Frequently Asked Questions

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