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    NOW L-Tryptophan 220 mg (60 VCaps)

    Essential amino acid that supports mood balance and restful sleep

    MOOD SUPPORT
    SLEEP QUALITY
    4.36 · 11 reviews|SKU: NOW90166
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    Why Choose This Product

    MOOD SUPPORT

    L-Tryptophan converts to serotonin, the neurotransmitter that helps maintain positive mood and emotional balance.

    SLEEP QUALITY

    Your body uses L-Tryptophan to produce melatonin, supporting natural sleep-wake cycles for better rest.

    ESSENTIAL AMINO

    Unlike non-essential amino acids, your body cannot make L-Tryptophan — it must come from diet or supplementation.

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    How It Works

    How It Works

    L-Tryptophan is the metabolic precursor to three important compounds: serotonin for mood regulation, melatonin for sleep cycles, and niacin (vitamin B3) for immune function. Your body converts this essential amino acid through well-established biochemical pathways that support both mental wellbeing and restorative sleep.

    Who It's For

    Adults seeking natural mood support, those with irregular sleep patterns, or anyone looking to optimize their body's serotonin production. Particularly beneficial for people with demanding schedules who need consistent mood and sleep support.

    Who It's Not For

    Not suitable for children or those taking MAO inhibitors or SSRIs without medical supervision.

    About This Product

    What It Does

    L-Tryptophan supports your body's natural production of serotonin and melatonin for balanced mood and quality sleep. This essential amino acid works as the building block for neurotransmitters that directly influence how you feel and how well you rest. Unlike tryptophan from food sources, supplemental L-Tryptophan provides consistent levels your body can rely on.

    Why It Works

    • SEROTONIN PRECURSOR: Converts directly to serotonin in your brain, supporting mood stability and emotional resilience.
    • MELATONIN SUPPORT: Provides the raw material your pineal gland needs to produce melatonin for natural sleep cycles.
    • ESSENTIAL STATUS: Your body cannot synthesize L-Tryptophan, making supplementation the most reliable way to maintain optimal levels.

    What's Inside

    Each vegetarian capsule contains 220mg of pure L-Tryptophan with minimal excipients. Suitable for vegetarians and free from common allergens.

    Why we carry it: NOW's pharmaceutical-grade L-Tryptophan delivers consistent potency at a dosage that actually works for mood and sleep support.

    How to Take

    Take 1 capsule daily with meals.

    Full Ingredients

    Each capsule contains:

    L-Tryptophan 220 mg

    Non-Medicinal Ingredients: Veg Capsule (hypromellose, water), Cellulose, Stearic Acid, Hydroxypropyl Methylcellulose.

    Customer Reviews

    4.36

    11 reviews

    Questions & Answers

    Research & Science

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