Description
You may know tryptophan as the thing that makes you sleepy after a big turkey dinner, but did you know this essential amino acid can actually be used as a workout supplement? If you’re looking to build lean muscle mass, adding Natural Factors L-Tryptophan to your workout regimen and healthy diet may help you achieve those gym goals! Providing an essential amino acid needed for muscle protein synthesis, as a free-form amino acid, L-tryptophan is more effective than the form obtained directly from food. Supplementing with L-tryptophan helps the body build lean muscle mass when combined with regular resistance training and a healthy balanced diet. Support your active lifestyle with this one-per-day, naturally fermented, vegetarian source of L-tryptophan.

Ingredients Per Capsule
L-Tryptophan 220 mg
Non-medicinal Ingredients
Vegetarian capsule (carbohydrate gum [cellulose], purified water)
dicalcium phosphate dihydrate
vegetable grade magnesium stearate (lubricant)
microcrystalline cellulose
silica
stearic acid