L-Tryptophan – 500 mg (Tryptophan)
L-tryptophan from Greatlife is a pure, well-researched essential amino acid of pharmaceutical grade sourced from Japan. L-tryptophan plays a central role in the body’s production of serotonin and melatonin, which are important for emotional balance and healthy sleep. It is used to support relaxation, mood, and overall sleep quality as part of the body’s natural processes. L-tryptophan from Greatlife is a high-quality supplement made with carefully controlled raw materials, free from additives, contaminants, and artificial substances.
- Pharmaceutical-grade L-tryptophan of the highest purity from Japan
- A well-researched precursor to serotonin and melatonin
- Traditionally used to support sleep, falling asleep, and emotional balance
- Free from dairy, soy, sugar, gluten, and GMOs
- Free from artificial sweeteners, colorings, preservatives, hydrogenated oils, corn syrup, and magnesium stearate
- Dark glass jar free from BPA, phthalates, and other endocrine-disrupting substances
- Manufactured under HACCP standards in the EU
- Suitable for vegans and vegetarians
- Buy now, pay later
- Ship all over Europe
- Out of stock
L-Tryptophan – 500 mg (Tryptophan)
L-tryptophan of pharmaceutical grade from Greatlife is the purest L-tryptophan we have found. It is a high-quality, well-researched essential amino acid from Japan, developed with a focus on maximum purity and safety. L-tryptophan plays a central role in the body’s production of serotonin and melatonin, which are essential for emotional balance and a healthy sleep cycle. Unlike lower-grade raw materials, L-tryptophan from Greatlife is characterized by documented purity and carefully controlled manufacturing. This supplement is clean, free from additives, toxins, and GMOs.
For best results, we recommend taking L-tryptophan approximately 30–60 minutes before bedtime when the goal is to support relaxation and sleep. It can also be used during the day when support for mood and emotional balance is needed. The product can be taken daily and is suitable for both occasional use and as part of a long-term routine to support nervous system stability.
Biologically, L-tryptophan functions as a precursor to serotonin, a neurotransmitter that influences mood, calmness, and overall well-being. Serotonin can in turn be converted into melatonin, which regulates the circadian rhythm and sleep quality. Through this natural biochemical pathway, L-tryptophan supports the body’s own processes for recovery and balance.
Why L-tryptophan?
L-tryptophan offers several unique benefits compared to many other supplements for the nervous system and sleep:
Support for sleep and circadian rhythm
- L-tryptophan is a natural building block for melatonin.
- It is used to support falling asleep and maintaining a stable sleep rhythm.
Support for mood and emotional balance
- L-tryptophan is a precursor to serotonin.
- It may help support emotional stability and a sense of inner calm.
Natural support for the nervous system
- L-tryptophan supports the body’s own neurotransmitter systems.
- It works through the body’s natural biochemical processes.
L-tryptophan of the highest quality
L-tryptophan from Greatlife is a pure, premium-quality amino acid, free from dairy, soy, sugar, gluten, and GMOs, and without artificial sweeteners, colorings, preservatives, hydrogenated oils, corn syrup, or magnesium stearate. The product is delivered in a dark glass jar free from BPA, phthalates, and other endocrine-disrupting substances. Manufacturing takes place within the EU under strict quality and hygiene standards, and the product is suitable for both vegetarians and vegans.
| Contents per daily dose (1 capsule) | % of DRI | |
|---|---|---|
| L-Tryptophan | 500 mg | * |
DRI = Daily Reference Intake
* DRI not established
Other ingredients
Microcrystalline cellulose Vivapur® (bulking agent), vegetarian capsule Vcaps® Plus (hydroxypropyl methylcellulose).
Directions for use
Take 1 capsule daily, 30–60 minutes before bedtime, on an empty stomach. If you have difficulty swallowing, the capsule can be opened and the contents sprinkled into water and consumed immediately.
Please note
Do not exceed the recommended daily dose. Keep out of reach of children. Food supplements should not be used as a substitute for a varied diet. A varied, balanced diet and a healthy lifestyle are important. Store in a dry, dark place at room temperature. Do not place food supplements in direct sunlight, in a humid environment, or near a heat source. Consult your doctor before use if you are pregnant, breastfeeding, or have a medical condition. Store in a cool, dry place. Made in the EU. Close the container tightly.