Name: L-Tryptophan 500 mg
Brand: Source Naturals
SKU: SN1984
Price: 18.25 USD
Availability: InStock
Rating: 5 (1 reviews)

$18.25

^*Enjoy an 18% member discount automatically applied at checkout. Your discounted member price and savings will appear in your cart.

Product

60 caps

120 caps

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Mood, Relaxation, Sleep

The essential amino acid L-tryptophan helps support relaxation, restful sleep, and positive mood. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response and sleep/wake cycles. L-Tryptophan also supports immune functions because it is the body's precursor to the kynurenines that regulate immunity. If needed, L-tryptophan converts to niacin in the body, which supports circulation, a healthy nervous system, the metabolism of food, and the production of hydrochloric acid for the digestive system. Source Naturals L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality.*

Serving Size: 3 Capsule
Servings Per Container: 20

	Amount Per Serving	% of Daily Value
Iron (naturally occurring)	575 mcg
L-Tryptophan	1.5 g

Other Ingredients:
gelatin (capsule), dibasic calcium phosphate, microcrystalline cellulose, silica, magnesium stearate

Wheat Free, Dairy/ Milk Free, Gluten Free, Soy Free, Yeast Free, Sugar Free, Starch Free, Preservative Free, Salt Free, Corn Free, Free of Artificial Colors/Flavors, Egg Free, Sodium Free

Suggested Use: 1 capsule three times daily, between meals and preferably with fruit juice. To support restful sleep, take 3 capsules before bed.

HYPOALLERGENIC: contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

STORE IN A COOL, DRY PLACE.

CAUTION: If you are pregnant, may become pregnant, breastfeeding, or are taking medications such as SSRls or MAOls consult your health care professional before using this product.

Let customers speak for us

from 2319 reviews

Life changing

I was going to a chiropractor for months feeling a little better but not 100%. A lady told me to try this it's life changing. I figured why not, I've spent enough already. After using it the first night I thought I was going crazy my pain was gone. I do one pump in the morning after a shower, and again at night after I shower. I will never go without this product!!

Jessica L

06/12/2026

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