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BioTech USA Write your review
L-tryptophan (60 caps)
Serotonin and Melatonin
1 reviews
- 500 mg L-Tryptophan
- Improves mood and sleep
- Normal protein metabolism
Current offer
€20 offered with any purchase of €150 or more! CODE: BA20
TERMS
close*Offer not combinable, valid until 01/13/2026 at 09:30 AM – While stocks last.
Order before 4 p.m. Same-day shipping, fast delivery within 48 hours.
Free shippingfrom 80€ of purchase
+3 million parcelsPrepared by us
Customer review 4.7/5+32,000 verified reviews
Delivery information
closeLivraison en France métropolitaine
◉ DPD Pickup: $4.91 (free for purchases over $80), delivered in 1 to 2 business days*
◉ DPD Predict: $6.90 (free for orders over $80), delivered in 1 to 2 business days*
◉ Chronopost Pickup: €7.90 for any purchase amount, guaranteed delivery within one business day before 1 p.m.
◉ Chronopost: €9.90 for any purchase amount, guaranteed delivery within one business day before 1 p.m.
Delivery to Corsica and Monaco
◉ Colissimo Pickup: $4.90 (free for purchases over $80), delivered in 2 to 3 business days*
◉ Colissimo: $6.90 (free for purchases over $80), delivered in 2 to 3 business days*
Delivery in Belgium
◉ DPD Pickup: $6.90 (free for purchases over $80), delivered in 2 to 3 business days*
◉ DPD Predict: $8.90 (free for orders over $80), delivered in 2 to 3 business days*
*Average time observed (modified)
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L-tryptophan (60 caps) is a dietary supplement in capsule form (1 capsule = 1.18 g) from the brand Biotech USA.
L-Tryptophan is an essential amino acid which cannot be produced by our bodies. It is therefore essential to obtain it from food or dietary supplements. Foods providing tryptophan include duck, pork, cottage cheese and eggs.
Tryptophan (500 mg per dose) is the amino acid precursor of serotonin and melatonin, the sleep hormone. Supplementing with tryptophan is very important, as a deficiency in this amino acid can have a negative impact on your mood and stress, and can also result in less recuperative sleep. A lack of sleep or too much stress will lead to instability in your weight and sports performance!
Tryptophan also plays a role in protein metabolism.
Net weight : 71Take 1 capsule with a glass of water 1 hour before bedtime.
Nutritional information
Serving size: 1 capsule
| Per 1 capsule | |
|---|---|
| L-Tryptophan | 500 mg |
Ingredients: : L-tryptophan 42%, bulking agent (calcium phosphates), capsule shell [gélatine, agent d’enrobage (shellac), colorant (oxydes de fer et hydroxydes de fer), régulateur d’acidité (hydroxyde d’ammonium), régulateur d’acidité (hydroxyde de potassium)], anti-caking agents (magnesium salts of fatty acids, silicon dioxide).
Dietary supplements should be used as part of a healthy lifestyle and not as a substitute for a varied, balanced diet. Do not exceed the recommended daily dose. Keep out of reach of children. Not recommended for pregnant or breast-feeding women or adolescents. Store in a cool, dry place, tightly closed, in original packaging, away from heat and light.
Allergens: Produced in a factory processing eggs, milk proteins, gluten, peanuts and shellfish ingredients.
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