Griffonia Seed Extract 5-HTP Supplement
60 tablets, 1-3 daily, 1 month + supply
- Natural source, extracted from 800mg of griffonia seeds
- A well-researched compound, featuring in 15 published studies
- Small, easy-to-swallow, taste-free tablets
Product ID: 564
£14.95
This item is in stock and will be despatched in 1 – 2 days.
- Natural source, extracted from 800mg of griffonia seeds
- A well-researched compound, featuring in 15 published studies
- Small, easy-to-swallow, taste-free tablets

- Product Information
5-HTP or 5-Hydroxytryptophan is a naturally occurring compound our bodies manufacture from the amino acid tryptophan. 5-HTP is converted into serotonin in the brain, where it acts as an important chemical messenger.
5 HTP is a well-researched nutrient, with over 15 published studies supporting its use. 5 HTP supplements are now a top-selling supplement in the USA. And its long history of use has shown it to have an excellent safety record.
Each of our taste-free coated 5 HTP UK tablets provides 100mg of pure 5-HTP a level widely used in published empirical studies.
We also insist on using the purest grade available for our 5 HTP supplement. The 5-HTP in our formula is extracted from the seeds of the griffonia simplicifolia tree. These seeds are carefully and sustainably harvested to ensure our raw materials are of the highest quality. Unlike many other 5 HTP UK products, this makes our formula a natural source, not synthetic.
The raw material in our 5 HTP UK supplement also undergoes heavy metal and microbiological testing to maintain the strictest quality and safety standards. Our 5 HTP formula is also made to Good Manufacturing Practice (GMP) in UK factories.
We've chosen to provide our 5 HTP UK in small, easy-to-swallow tablets instead of capsules since this material can deliver highly concentrated amounts of the compound.
Our 5 HTP UK formula is suitable for both vegetarians and vegans.
Unsure if our 5 HTP supplement is for you? Don't worry. Our expert Nutrition Advisors are here to help. Simply click the chat button located at the bottom right-hand of our website.- Read MoreRead Less
- Daily Intake
- Take 1-3 tablets daily. Start on one tablet and increase if necessary. Take half an hour before meals or half an hour before bedtime. Do not exceed the recommended daily dose. Take for up to 3 months and then stop for a month and review. Food supplements should not replace a balanced diet and a healthy lifestyle.
- Formula
- Typically Per TabletGriffonia Seed (as 362mg of an 11:1 extract)3982mgProviding 5-HTP 100mg
- Ingredients
- Calcium Carbonate, Griffonia (Griffonia simplicifolia) Seed Extract, Anti-caking Agents (Silicon Dioxide, Stearic Acid & Magnesium Stearate), Tablet Coating (Hydroxypropyl Methylcellulose, Glycerol).
- Suitable For
- This product is suitable for all adults.
This product is suitable for vegetarians and vegans. - Cautions/Allergies
- This product is free from wheat, yeast, dairy, soya, nuts and shellfish.
This product is free from gluten containing ingredients.
Do not take if pregnant or breast feeding.
In a few individuals 5-HTP can cause mild drowsiness so it is advisable not to drive or operate machinery until you determine how it affects you.
If you are taking anti-depressants, you should consult your doctor before taking this product. - Frequently Asked Questions (1)
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Q - "How Much 5-Htp 100Mg Should I Take?"A - Take 1-3 tablets daily. Start on one tablet and increase if necessary. Take half an hour before meals or half an hour before bedtime. Do not exceed the recommended daily dose. Take for up to 3 months and then stop for a month and review. Food supplements should not replace a balanced diet and a healthy lifestyle.
Reviews
By Anonymous
, 26 Jun 2025
Verified Purchase
I researched this product carefully. I compared extraction ratios, and composition. The tablet is a mottled green and when broken up, you can see the same mottled colour throughout. Other products were pure white which lead me to consider whether they contained actual Griffonia seed or were pharmaceutically produced. This product provided the greatest extraction potency for the cost.
I found it helpful for eradicating Ca**ida so I can now tuck in merrily to dairy products. Yay! If I take it without food, I will get a vasoconstriction headache. Having tried it with each meal through the day, I found it works best with dinner and seems to help relieve Fib****algia pain. It has not helped with the reduction of hunger pangs, but I do seem to eat less carbohydrates. This is my second purchase.
I found it helpful for eradicating Ca**ida so I can now tuck in merrily to dairy products. Yay! If I take it without food, I will get a vasoconstriction headache. Having tried it with each meal through the day, I found it works best with dinner and seems to help relieve Fib****algia pain. It has not helped with the reduction of hunger pangs, but I do seem to eat less carbohydrates. This is my second purchase.
Recommend to a friend: Yes
Thank you for taking the time to leave a review. The evidence for this supporting this is a little thin on the ground. However, I am pleased to hear that you have found this helpful. In relation to the product causing you headaches, I am so sorry to hear of this. This isn't something we would expect. I have contacted you separately to discuss this further.
Nature's Best Nutrition Advice
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By Stanislaw Hoppe
, 17 Jun 2025
Verified Purchase
Recommend to a friend: Yes
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"Great for evening out my up and down moods"
By Sarah Cullen
, 16 Jun 2025
Verified Purchase
I''ve used 5HTP on and off for years as I find it very effective for helping me cope with my up and down moods and anxiety with absolutely no unwanted side effects, and it also improves my sleep.
Nature''s Best 5HTP are affordable and come in small easy to swallow capsules at what I believe to be a good (at least for me) dosage.
Recommended!
Nature''s Best 5HTP are affordable and come in small easy to swallow capsules at what I believe to be a good (at least for me) dosage.
Recommended!
Recommend to a friend: Yes
Value for money:
How much has this product helped you?
"Better quality sleep "
By Anonymous
, 09 Jun 2025
Verified Purchase
I feel I have a more refreshing sleep when I take this and if my bladder wakes me up I do go back to sleep fairly easily. I''m menopausal but unable to take H*T aswell as being neurodiverse, when I take this regularly I feel generally calmer and able to focus a little better. I''ve tried other brands but this brand seems to work the best.
Recommend to a friend: Yes
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" okay but caution in my experience"
By Patrick Grimes
, 04 Jun 2025
Verified Purchase
This did seem to help me but I am on medication for mental health and although it didn''t seem to do me much harm more good I did experience sometimes extremely vivid dreams which where quite interesting but not very restful. There are warnings about taking with other medication and from my internet search you have to be careful.
Recommend to a friend: Yes
Thank you for taking the time to leave a review.
I am sorry to hear of the symptoms you experienced whilst taking this product, this certainly isn't something we would expect. I would just mention that we wouldn't recommend taking the product alongside anti-depressants unless the doctor has said this is OK.
I am sorry to hear of the symptoms you experienced whilst taking this product, this certainly isn't something we would expect. I would just mention that we wouldn't recommend taking the product alongside anti-depressants unless the doctor has said this is OK.
Nature's Best Nutrition Advice
Value for money:
How much has this product helped you?