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Protocol for Life Balance, L-Tryptophan, 500 mg, 120 Vcaps (Discontinued Item)

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Protocol for Life Balance, L-Tryptophan, 500 mg, 120 Vcaps (Discontinued Item)


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Protocol for Life Balance, L-Tryptophan, 500 mg, 120 Vcaps (Discontinued Item)

Out of Stock - Discontinued
  • Shipping Weight:
    0.35 lbs
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  • Product Code: PRT-10167
  • UPC Code: 707359101678
  • Package Quantity: 120 Vcaps
  • Dimensions:
    2.7 x 2.7 x 4.7 in, 0.3 lbs
    Switch to Metric units
Product Overview


  • Pharmaceutical Grade
  • Promotes Positive Mood
  • Supports Restful Sleep
  • GMP
  • A Dietary Supplement
  • Vegetarian Formula

L-Tryptophan is an essential amino acid important in human nutrition for the synthesis of melatonin and serotonin, hormones regulating mood and stress response. L-Tryptophan helps support relaxation, sleep, disposition and immune function. As an essential amino acid, it is not synthesized by the body and must be obtained from the diet. Our L-Tryptophan is pharmaceutically pure — every lot is screened against Peak E and microbial contamination.

L-Tryptophan is an amino acid that is critical for neurotransmitter synthesis. It is necessary for the production of serotonin (a neurotransmitter), melatonin (a neurohormone), and niacin (vitamin B3). For humans, tryptophan is an essential amino acid, meaning it cannot be made by the organism and therefore must be part of its diet. These important amino acids are building blocks in protein biosynthesis.

Tryptophan is naturally abundant in chocolate, oats, bananas, dried dates, milk, cottage cheese, meat, fish, turkey, and peanuts.

Many people find L-Tryptophan to be a safe and reasonably effective sleep aid, probably due to its ability to increase brain levels of serotonin (a calming neurotransmitter) and/or melatonin (a sleep-inducing hormone secreted by the pineal gland in response to darkness or low light levels).

Guaranteed Quality
This is an FDA-regulated dietary supplement that is produced in an FDA- and third party-inspected facility. We are certified for producing dietary supplements and USDA Organic products using Good Manufacturing Practices (GMP). All ingredients are quality tested to meet or exceed specifications. Our quality team goes above and beyond standard quality control to ensure the safety and efficacy of this supplement. We utilize advanced analytical and microbiological testing methods, with capabilities that are state-of-the-art and exceed basic lab requirements.

Suggested Use

As a dietary supplement, take 1-2 Vcaps daily, preferably at bedtime. for intensive use, take up to 6 Vcaps daily, in divided doses, as directed by a health care practitioner.

Other Ingredients

Cellulose (capsule), Cellulose and Stearic Acid (vegetable source).

Contains no sugar, salt, yeast, wheat, gluten, soy, milk, egg, shellfish or preservatives.

Vegetarian/Vegan Product.

Protocol For Life Balance L-Tryptophan is Pharmaceutical Grade (USP).


Keep out of reach of children. Pregnant/lactating women, those taking anti-depressant medications (such as SSRI's or MAOI's), or those with liver disorders, consult a health care professional before using this product. May cause drowsiness.

Do not eat freshness packet. Keep in bottle.

Store in a cool, dry place. Please recycle.

Cautions and Interactions
A frequent side effect from high dose Tryptophan use is drowsiness; it is advisable to take L-Tryptophan in the evening and not while driving or operating heavy machinery. Dry mouth and gastrointestinal upset are among the small number of relatively uncommon side effects.

Tryptophan should not be used concomitantly with monoamine oxidase inhibitors/selective serotonin reuptake inhibitors (SSRIs). Individuals with liver cirrhosis should avoid tryptophan supplementation.

This product contains an Ageless anti-oxygen packet to enhance protection during storage.

Supplement Facts
Serving Size: 2 Vcaps
Servings Per Container: 60
  Amount Per Serving % Daily Value
L-Tryptophan (2-amino-3-indolylpropanoic acid) 1.0 g (1,000 mg) *
* Daily Value not established.