Since 2005
You are currently:
Choose language:
Need help?
Leave message
Choose language:
Select currency: $ £
Since 2005
Order:59.00 $118.00 $177.00 $236.00 $295.00 $
Shipping:-3.00 $-6.00 $-9.00 $-12.00 $-15.00 $
0 0.00 $
Since 2005  +1 844-530-3647
Since 2005
Notify me of availability
Best 5-HTP 100mg Best 5-HTP 100mg 60 caps.
Doctor's Best
18.70 $

Best 5-HTP 100mg

Servings: 60 caps.

All variants:

EU Stock
Working days
from the dispatch
For free shipping is missing: 75.00 $
18.70 $With VAT
0.31 $ / serving

From 3 units only 18.32 $ /Units. -2%

We can let you know you when the product will be available again

Customer Service

(mon.-fri 900-1700

You have got questions about the product

  • Raises the level of serotonin
  • Has antidepressant and anxiolytic properties
  • Improves mood
  • Helps during weight lossing
  • Reduces cravings for sweets
  • Improves the quality of sleep and supports regeneration
  • Has anti-inflammatory and analgesic properties 
  • Lowers blood pressure

Doctor's best 5-HTP is a dietary supplement containing 5-HTP extracted from a high-quality extract from the seeds of the African plant – Griffonia simplicifolia.

5-hydroxytryptophan (5-HTP) is an aromatic amino acid naturally produced by the organism from exogenous (essential) amino acid – L-Tryptophan. It has been used clinically for over 30 years due to its ability to increase production of serotonin in the brain.

Serotonin (5-hydroxytryptamine, 5-HT), it is one of the three main monoamine neurotransmitters, standing in a row next to dopamine and norepinephrine. In the organism, it is being produced from one of the essential amino acids – L-Tryptophan. In the central nervous system, serotonin is being involved in the regulation of sleep, depression, anxiety, aggression, appetite, temperature, sexual behavior, and pain sensation.

5-HTP is an intermediate metabolite of L-Tryptophan in the production of serotonin. Therapeutic use of 5-HTP bypasses the conversion of L-Tryptophan and 5-hydroxy L-tryptophan by the enzyme tryptophan hydroxylase, which is an activity limiting speed of serotonin synthesis. Tryptophan hydroxylase may be inhibited by many factors: stress, insulin resistance, a deficiency of vitamin B6 and magnesium.

5-HTP is well absorbed by oral application, because 70% of ingested dose gets into the bloodstream. Absorption of 5-HTP is independent of the presence of other amino acids. Therefore, it may be taken together with meals without reducing its effectiveness. In contrast to L-Tryptophan it is not "stolen" for the production of niacin and protein synthesis, and therefore, fully utilized for the synthesis of serotonin.

The level of serotonin in the brain is strongly dependent on the concentration of 5-HTP in the central nervous system (OUN). 5-HTP easily crosses the blood-brain barrier and, in contrast to L-Tryptophan, does not require the transport of proteins and does not compete with other amino acids for access to these molecules. All this makes that 5-HTP very quickly and with no problem gets into the bloodstream, and then to the OUN.

The mechanism of action of 5-HTP is mainly based on increasing a level of serotonin in the central nervous system. However, studies have shown that oral aplication of 5-HTP also increases the quantity of melatonin of dopamine, norepinephrine, and beta-endorphin.

Depression: numerous studies have shown that 5-HTP shows a fairly strong antidepressant and anxiolytic properties, comparable to the effectiveness of antidepressants such as fluoxetine (popular Prozac). Interestingly, the 5-HTP rapidly forms a therapeutic effect, which in the case of antidepressants require longer treatment. The dosage of 5-HTP in states of depression or anxiety ranges from 50 mg to 300 mg per day.

Fibromyalgia: numerous studies have also shown that 5-HTP may be an effective formulation in treating this disease. 5-HTP showed analgesic, anxiolytic properties, eliminated morning stiffness and constant fatigue, and counteracted sleep disorders.

Obesity: clinical trials on obese patients showed that taking 5-HTP results in a reduction in food intake (appetite), and thus there was a reduction in body weight. 5-HTP seems to be very useful during restrictive diets, when both the amount of tryptophan and serotonin decreases rapidly, resulting in increasing desire carbohydrates (including confectionery) and, consequently, excessive caloric intake or gorging. 5-HTP counteracts the desire for carbohydrates, including sweets and helps reduce appetite and calorie intake.

Migraine, chronic headaches: many scientists believe that chronic headaches, including migraine, may be caused by a low serotonin level due to increased its decomposition by the enzyme of monoamine oxidase. 5-HTP increases the level of serotonin, and is very effective in the prevention of chronic headache types. At doses of 600 mg per day it is comparable with a strength of methysergide – one of the most common migraine drugs – except that, the 5-HTP at the same time showed no side effects.

Insomnia: 5-HTP has proved to be effective in treating insomnia, especially in the case of improving the quality of sleep by increasing the length of REM sleep. It is recommended to take 100 mg 2 hours before bedtime, and then 100 mg half an hour before bedtime. If it does not work, you can increase the dose before bedtime to 200-300 mg.

Recent studies indicate that 5-HTP may reduce rheumatic inflammations and alleviate the symptoms of arthritis. It was also proved that it reduces the occurrence of asthma and allergies symptoms, lowers blood pressure and has anti-inflammatory properties. 5-HTP may also help regulate blood glucose level.

In summary, the Doctor's best 5-HTP is a supplement for comprehensive action based on solid scientific evidences, including clinical trials. It is especially recommended to improve the quality of sleep and processes associated with regeneration. It seems also to be necessary during weight loss because it reduces cravings for carbohydrates, improves mood and self-confidence. People with hypertension, arthralgia and people suffering from asthma and allergies – also should take this natural product with broad health benefits.

Directions for use
Reviews (0)


Container size: 60 capsulesServing size: 1 capsuleServings per container: 60
per 1 capsuleamount%DV
5-HTP (5-hydroxytryptophan) (from Griffonia Simplicifolia seed extract)100 mg-

Other ingrednients

Modified cellulose (vegetarian capsule), microcrystalline cellulose, silicon dioxide.

Similar products
Best to combine with
Nordic Naturals
14.71 $

The recommended dose of Vitamin D3 for children over 4 years of age. Delicious watermelon-flavored gummies.

Carlson Labs
13.71 $

Vitamin D3 in liquid, neutral in taste, for children. Supports the proper condition of bone structure and immunity.

16.43 $

Vitamin C in form of Quali-C®. It improves the condition of joints, strengthens immunity.

Biotech Usa
7.23 $

High-quality source of vitamin C with as much as 1000 mg of ascorbic acid per tablet.

Now Foods
11.22 $

Supplement providing 250mg of niacin in every capsule. Does not cause "flush" effect.

11.19 $

Organic dried acerola fruit juice concentrate. The wealth of vitamin C that strengthens the immune system.




Tryptophan is one of the nine essential amino acids that require high protein food consumption, mono-preparation supplements tryptophan, an amino acid type and EAA-day nutrients and protein, which is essential in the process of protein synthesis. A derivative of 5-HTP in the decarboxylation is a precursor of serotonin ((tissue hormone having an effect on blood pressure and peristalsis), and the subsequent processes of melatonin (the hormone sleep). It is used for synthesis of nicotinic acid (niacin, known as vitamin PP). The due to the appetite suppressant is also used in certain weight loss formulations.
Even a small deficiency is dangerous for the course of many physiological processes, can cause the nervous system deterioration of mood, insomnia, and disturbances in the digestive process. Tryptophan deficiency in the long term leads to depression and neurological disorders.
Mono-preparation supplements of tryptophan are recommended as a means of reducing the stress and reducing the feeling of insomnia. A part of the nutritional supplements type of EAA and all-day aminoacids, it is a valuable component of protein supplements. Available in store
Doses recommended in supplementation: 500 - 2000 mg at bedtime, alternatively 500 - 1000 mg before meals.

Latest on blog

Vanilla – properties and health benefits

Vanilla – properties and health benefits

Vanilla is one of the most expensive spices in the world. Its high price is due to origin and properties. Vanilla gives a unique and unique taste and aroma, which...

Read more
How many vegetables and fruits can you eat in one day?

How many vegetables and fruits can you eat in one day?

We can talk endlessly about the benefits of vegetables and fruits. We should eat them several times a day, taking care of their variety, because they are a source...

Read more
Vegetarianism – is a vegetarian diet safe for pregnant women?

Vegetarianism – is a vegetarian diet safe for pregnant women?

Choice of a vegetarian diet for pregnant women and nursing mothers is the most controversial. But is vegetarianism really harmful to a pregnant woman and her...

Read more
Mayonnaise – properties, calories. Which one to choose? Which is the healthiest?

Mayonnaise – properties, calories. Which one to choose? Which is the healthiest?

Mayonnaise is one of the most common additions to dishes. Store shelves buckle under the jars of mayonnaise. But which one to choose? Which type of mayonnaise is...

Read more
Healthy breakfast – what to eat and what to avoid?

Healthy breakfast – what to eat and what to avoid?

A healthy breakfast is the most important meal of the day and should not be missed. It is therefore worth taking care to eat breakfast, even when we do not have...

Read more
Vegetable fat – what to choose?

Vegetable fat – what to choose?

Vegetable fats have a great influence on our health. We can choose from olive oil, linseed oil, rapeseed oil and many, many more. See what properties vegetable...

Read more

Sign up for our newsletter
And receive coupons, news, special offers and much more!

Customer service

MZCatalog - recommended dietitians

MZCatalog - recommended trainers

MZCatalog - recommended clubs

Supps4You LLC
Unit 3 Enterprise Court, Farfield Park Rotherham S63 5DB +44 7767803657