Previous Next


5-HTP 100 mg

Natural extract from the seeds of Griffonia simplicifolia


Lamberts® takes great care to ensure the purity of the 5-HTP used in this product which is extracted from a natural source, the seeds of a plant called Griffonia. The extract from this plant is now one of the most extensively used supplements worldwide and is particularly popular in the USA where it has a long history of use. Our tablets are manufactured in the UK to pharmaceutical GMP standards.

5-HTP, short for 5-hydroxytryptophan, is a derivative of tryptophan, an amino acid that is present in high protein foods such as meat and dairy products and whilst the body makes its own 5-HTP from tryptophan it is able to use the 5-HTP provided by supplements.

We can confirm that Lamberts 5-HTP is Peak X free.

Daily intake: 1 to 3 tablets

A white round tablet.

Each tablet delivers:

L-5-Hydroxytrytophan 100 mg
(natural extract from the seeds of Griffonia simplicifolia)  

Tableted / Encapsulated with:

See product label.

Disintegration Time

Less than 1 hour.

Suitable for Vegans, Vegetarians and Lactose and Gelatin Free.

Allergen Advice 

The following list of allergens are excluded: Wheat, Gluten, Barley, Soya, Eggs, Milk and milk products, Lactose, Nuts, Sulphites, Celery, Fish, Shellfish and Yeast.


This product is not recommended for pregnant or lactating women. Mild drowsiness may occur in some people. It is advisable not to drive or operate machinery until you determine how 5-HTP affects you. Consult your Doctor if you are taking antidepressants.

Storage instructions

To be stored in a cool, dry place and protected from light, keep it out of reach of smallest children.

Legal category 

Food supplement.

Take 1 tablet half an hour before meals or half an hour before going to sleep, no more than 3 times a day.
Start with 1 tablet daily and increase the amount if necessary.
Do not exceed the expressly recommended daily dose.
It is recommended to take 5-HTP for periods of up to 3 months.
One pot lasts for: 60 days max.
Unit cost: € 0.62

5-HTP properties. Lamberts

muestra próximamente disponible