L-Tryptophan (120 Capsules)

Item number: VI-ZU99-SZ0B

EAN: 4260309481108

9 reasons why …

  • 500 mg L-tryptophan powder per capsule
  • Certified purity of >99%
  • Recommended dosage: 1 capsule per day
  • 120 capsules/bottle
  • 100% vegan
  • Made in Germany
  • Lab Analysed
  • Free from additives like microcrystalline cellulose, non-GMO
  • Produced according to ISO 9001, HACCP, GMP standards

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Differential price
From 3 units » 15,11 € 201,18 € per KG
From 5 units » 14,31 € 190,49 € per KG
From 10 units » 13,51 € 179,95 € per KG
15,90 €
211,72 € per 1 kg

including 7% VAT., plus shipping

Available now! (1 - 3 workdays)


Our Tryptophan is obtained from fermentation and is therefore natural. This guarantees not only a product free from chemical residues like solvents but also high bioavailability. Moreover, our product is extensively analysed by an independent German laboratory and its purity of at least 99% is guaranteed.

One capsule contains 500 mg L-tryptophan and nothing more. With none of the extra additives that are commonly found in other products, our capsules are non-GMO and, of course, suitable for vegans.



  • L - Tryptophan is an essential amino acid: the body cannot synthesise it and it must be obtained from the diet. It is an important precursor for the endogenous synthesis of the neurotransmitters serotonin, melatonin and vitamin B3 (niacin). For this reason, it could be useful for people with mood instability or sleep disorders.



  • In 1901 the British biochemists Frederick Gowland Hopkins and Sydney W. Cole discovered tryptophan in the milk protein casein.
  • It is present in most protein-based foods or dietary proteins. The best vegan sources are chocolate, oat, dried dates, sesame, sunflower seeds and chickpeas.
  • Eating a banana can cheer you up: bananas are the only fruit to contain L-trypotphan and vitamin B5 which together can help the body to produce serotonin
Shipping weight:
0,11 Kg
75,12 g
L-tryptophan, capsule shell (hydroxypropyl methylcellulose)
The recommended dose should not be exceeded. Food supplements are not a substitute for a balanced and varied diet and a healthy lifestyle. When taking antidepressants, consult a doctor or therapist before consumption. Not suitable for pregnant and lactating women as well as children and adolescents. After taking the product, the ability to travel on the road may be impaired. Keep out of reach of children. Store in a cool, dry and dark place.
Take 1 capsule daily with sufficient food and liquid.

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