L-Tryptophan is an essential amino acid and is critical in helping your body produce proteins for muscle, hair, and skin. Unfortunately, tryptophan is the least abundant amino acid in your diet. Even a person on a high-protein diet gets less than 1.5 grams of tryptophan a day.

Also, when you ingest tryptophan it undergoes degradation processes that dramatically reduce the amount actually available for conversion to serotonin in the brain. Some experts estimate that only 1% of the dietary tryptophan you take in reaches the brain. For some this is sufficient, but for others, low levels can adversely affect sleep, weight, and mood.

Tryptophan is a precursor for serotonin. Unlike other products that influence serotonin reuptake, L-tryptophan is a direct precursor that results in almost immediate increases in serotonin, which is one of the primary neurotransmitters involved with sleep and mood.*

In those people with low serotonin levels, L-tryptophan has been shown to help establish and maintain healthy levels, which may help to improve mood and reduce tension.*

In those people with serotonin levels already within the normal range, L-tryptophan acts as a natural sleep aid, not only helping people fall asleep, but also helping them stay asleep throughout the night and wake without grogginess.

For this reason, some experts believe tryptophan can be a safe and effective sleep aid when added to your diet as a supplement. Supplementing your diet with tryptophan, specifically TryptoPure, may mean a more restful nights sleep, a brighter mood, and a host of other benefits.*

Life Extension has selected TryptoPure as its tryptophan of choice. TryptoPure is the most trusted tryptophan available today. TryptoPure is suitable for vegetarians, additive-free, solvent-free, 100% fermented, and GMP certified.

Life Extension has developed a patent-pending formula called Optimized TryptoPure Plus that provides lysine, niacinamide, hops, ginger and rosemary extracts to protect tryptophan against excessive degradation in our aging bodies, thus sparing it for conversion into serotonin in the brain.

Ingredients:
3 vegetarian capsules contain:
Serving Size 3 vegetarian capsuleNiacin (Vitamin B-3) (as niacinamide) 66 mg
TryptoPure L-Tryptophan (100% pure USP pharmaceutical-grade L-Tryptophan) 1000 mg
L-Lysine (from USP pharmaceutical-grade AjiPure L-Lysine HCl) 250 mg
Proprietary TryptoPure Plus Blend (285 mg) of: Perluxan Hops Standardized Extract (Humulus L.) (cones), Ginger Root Standardized Extract (Zingiber officinale) (rhizome), and Ursole Rosemary Standardized Extract (Rosmarinus officinalis) (leaves)
Other Ingredients: vegetable cellulose (capsule), magnesium stearate, maltodextrin, rice flour, modified food starch, silica. Contains corn and rice.
Contains NO: milk, egg, fish, peanuts, crustacean shellfish (lobster, crab, shrimp), soybeans, tree nuts, wheat, yeast or gluten. Contains NO sugar, and no artificial sweeteners, flavors, colors, or preservatives.

Recommended Use:
Adults: Take two to three capsules all at once before bedtime, or one capsule on an empty stomach before each meal, or as recommended by a healthcare practitioner. For maximum absorption take with a small amount of carbohydrate, such as diluted juice. Take separately from food or supplements containing protein or amino acids, especially arginine.

Warning:
Serotonin syndrome is characterized by high levels of serotonin and symptoms like confusion, sweating, agitation, nausea, involuntary muscle contractions, and racing heartbeat. Do not take L-tryptophan if you experience these symptoms. Do not take L-tryptophan in combination with other agents that increase serotonin levels in the central nervous system. Agents that increase serotonin levels can include psychiatric medications (e.g. antidepressants, lithium), migraine medications (e.g. sumatriptan), Parkinsons disease medication (e.g. carbidopa), and dextromethorphan, an over-the-counter cough suppressant. Do not use before driving or operating heavy machinery.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

TryptoPure and AjiPure are trademarks of Ajinomoto Company, Inc.Perluxan is used by permission. Ursole is a trademark of Vitiva d.d., Slovenia.