Shopping Cart
The shopping cart is empty, go to the Supplements guide.
60 capsules: November 2025
1-2x per day 1 capsule at least half an hour before a meal or half an hour before going to bed, preferably with fruit juice.
Discount
Price per piece with purchase of:
| 1 | units: | ||
| 2 | units: | -5% | |
| 3 | units: | -10% | |
| 4 | units: | -15% | |
| 5 | units: | -20% | |
| 8 | units: | -25% |
kk
Bonusan L-Tryptophan 500 mg plus is an updated formula that replaces the lower dosed 'L-Tryptophan 250 mg plus'.
In addition to the amino acid L-tryptophan, it also contains three B vitamins (B3, B6, B12), folic acid and iron.
The B vitamins contribute to healthy mental well-being and iron to normal cognitive function.
Quatrefolic® is a patented product and a registered trademark of Gnosis.
| Product name: | Bonusan L-Tryptophan 500 mg plus |
| Content: | 60 vegetarian capsules |
Supplement Facts per capsule (Serving Size)
| Amount | RI † | |
| L-Tryptophan | 500 mg | |
| Vitamin B3 (nicotinamide) | 10 mg | 63% |
| Vitamin B6 (pyridoxal-5-phosphate) | 0,75 mg | 54% |
| Folate (5-MTHF glucosamine salt) (Quatrefolic®) | 40 mcg | 20% |
| Vitamin B12 (methylcobalamin) | 50 mcg | 2000% |
| Iron (iron fumarate) | 2,1 mg | 15% |
Ingredients L-tryptophan, folic acid, vitamins, iron.
Explanation of the composition †RI stands for Reference Intake and replaces the RDA (Recommended Daily Allowance). RI is a guideline for the intake of vitamins and minerals in particular. RI and ADH are equal in number.
Suggested use
1-2x per day 1 capsule at least half an hour before a meal or half an hour before going to bed, preferably with fruit juice.
Stick to the recommended daily dosage, unless otherwise advised.
A varied, balanced diet and a healthy lifestyle are important. Nutritional supplements are not a substitute for a varied diet. More usage advice.
| This supplement is: |
| Suitable for vegetarians |
| Suitable for vegans |
Storage advice Store in a cool, dry and dark place. Not in the refrigerator.
Keep out of reach of children.
Best by date 60 capsules: November 2025
Dietary supplement Amino acid supplement
Produced by Bonusan BV
Edisonstraat 64
3281 NC Numansdorp
T: 0186-745001
For Smeets & Graas
G. Meirstraat 11
9728 TB Groningen
050 850 36 88
Bonusan L-Tryptophan 500 mg plus is an updated formula that replaces the lower dosed 'L-Tryptophan 250 mg plus'.
In addition to the amino acid L-tryptophan, it also contains three B vitamins (B3, B6, B12), folic acid and iron.
The B vitamins contribute to healthy mental well-being and iron to normal cognitive function.
Quatrefolic® is a patented product and a registered trademark of Gnosis.
| Warning |
| Do not use in combination with drugs that affect brain function (sleeping drugs and/or antidepressants). |
| Allergy information | |
| Gluten | no |
| Shellfish | no |
| Eggs | no |
| Fish | no |
| Peanut | no |
| Soy | no |
| Milk (lactose) | no |
| Tree nuts | no |
| With sweetener(s) | no |
| With caffeine | no |
| Yeast | no |
| Lupine | no |
| Corn | no |
| Mustard | no |
| Rice | no |
| Celery | no |
| Sesame | no |
| Molluscs | no |
| Sulfur dioxide and sulfite | no |
| Coloring additives | no |
| Flavourings | no |
| Conservatives | no |
Deviations from the label It may happen that texts on our website differ from the texts on a product's label.
Health issues If you have health issues and/or are taking medication, always consult your doctor before taking certain supplements.
Pregnancy/breastfeeding, children If a product does not explicitly state that it is intended for pregnant or breastfeeding women, or children, we recommend consulting an expert first.
More information For more information on label discrepancies, what to do in case of
health complaints, and answers to other questions, please visit our
Frequently Asked Questions page.
Contact If you still have questions, please feel free to contact us.