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NOW L-Tryptophan 220 mg (60 VCaps)
Essential amino acid that supports mood balance and restful sleep
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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
Full Ingredients
Each capsule contains:
L-Tryptophan 220 mg
Non-Medicinal Ingredients: Veg Capsule (hypromellose, water), Cellulose, Stearic Acid, Hydroxypropyl Methylcellulose.
Customer Reviews
11 reviews
Questions & Answers
Research & Science
Explore the dropdown below to view peer-reviewed literature related to NOW L-Tryptophan 220 mg (60 VCaps)

