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5-HTP Capsules - 100mg

NEW FORMULA! Naturally sourced 5-HTP | For normal psychological function | Added B vitamins & Zinc

5-HTP 100mg main product image
5-HTP 100mg tablet view
584 reviews9410020
  • Enriched with B Vitamins and Zinc
  • Vegan friendly cellulose capsule
  • Reduction of tiredness and fatigue
  • Good alternative to St John's Wort
- Best Price
Only 16.0p per capsule
In stock


In Stock

Supplement Description

What is 5-HTP?

5-HTP is short for L-5 hydroxytryptophan, is an amino acid found naturally in the body. 

5-HTP is involved in the production of the chemical messenger serotonin. Serotonin is a neurotransmitter involved in many physiological processes including mood regulation, sleep, and appetite.

5-HTP is derived from West African Griffonia simplicifolia tree, the only natural source available, using a specially developed process that retains as much of the active ingredient as possible.

Why buy our 5-HTP supplement?

Our 5-HTP supplement is formulated with Zinc and B Vitamins that contribute to reduction of tiredness and fatigue as well as supporting psychological and cognitive function. It is a perfect choice for those wanting to support their well-being in the face of the stresses and strains of everyday life.*

This supplement is vegan friendly, with each capsule providing 100mg of 5-HTP (in amino acid form).

*Niacin and Vitamin B6 contribute to normal psychological function. Pantothenic acid contributes to normal mental performance. Vitamin B6 contributes to normal functioning of the nervous system and to normal energy-yielding metabolism. Zinc contributes to normal cognitive function.

Product Information

5-HTP 100mg capsule view
Capsule Size
21.7mm x 7.65mm
Cautions & Warnings
List of Ingredients
Recommended Intake
Legal Category


Customer Reviews for 5-HTP 100mg

The views expressed below are the personal opinion of Just Vitamins customers. Just Vitamins does not endorse these views, nor should they be regarded as health claims or medical advice. All reviews are collected and verified as genuine by a 3rd party called Feefo.

Overall product rating 9.4 / 10 - 584 customers have independently reviewed and recommend 5-HTP from 584 reviews (showing latest 25 reviews)
Review Date
Review Details
Service rating: On google. Options to pay and delivery both satisfactory.
Product: Purchased to help me sleep but they have failed to do so.
Service rating: Product as described often buy from here
Product: Product as described. I often buy from here
Service rating: A great source of all my supplements. Very easy to order. Choice of quantities. Letterbox-friendly packaging. Speedy delivery.
Product: Definitely helps me sleep better.
Good quality and reliable service.
Service rating: Very happy with purchase! So far my mood has improved a lot and sleep quality much better
Product: My mood had improved and sleep so much better!!
5-HTP great product
Great supplements, in eco conscious packaging. Fast delivery.. The only downside: Just Vitamins no longer deliver to Ireland, so I received my order when visiting family in the UK.
Service rating: Delivery was fast, the packaging is really nice (I like the fact its like coffee refill packs rather then the plastic tubs) The product itself is hard to say, mainly because its like taking a multi vitamin, you really can't tell that you are now getting what your body needs. Can say it hasn't hurt me at all, and I have been in a better way but thats a combination of things, eating healthy, exercising, taking extra things that my diet is lacking. However I can say I will be ordering again because I feel the 2 have helped my mood and sleeping (I have major sleeping issues) Hope this helps who ever is reading this.
Service rating: service is good choice of goods decent prices
Product: helps sleep and is a good price
Service rating: Quick accurate service at fair prices. The quality of the vitamins is brilliant & in fact I am just going to order some more
Product: We've really enjoyed being able to wind down easier & have good night sleeps. Very good for calming anyone who has spent too much screen time too.
Service rating: Fast and efficient service
Product: Bought for partner who is suffering from long covid and experiencing low . In addition to a good diet, he has taken these and his mood has noticeably improved...
Service rating: Great product, received in the time for postage. All items are great with the ingredients very easily readable on the website, huge help to when buying products the need to be free from.
Product: Amazing product, helps with fibromyalgia and sleeping, product is free from and the service is great and quick
Service rating: I paid 2.50 for quick delivery but it didn't happen after 8 days I contacted them and they said it had been sent but didn't have a royal mail tracking number and quick delivery is 5 days!!!!
I eventually received them 2 weeks later. They did refunded the £2.50 postage and rightly so But they could have offered me a discount coupon or something for my trouble. So no I wasn't impressed??
Product: I haven't been taking it long enough to know but it seems ok
Service rating: Quick delivery. Great products.
Product: To helo with tiredness. It is helping
I wanted to take a higher dose 5htp and came across yr product, which I am very pleased with. I seem to be sleeping a little longer and deeper
Service rating: Prompt delivery. Have used JV before and will probably use again.
Product: Taking to try to help my sleep pattern. I think they are helping so far.
Quick & Easy
Quick delivery
Very happy with the product & price of just vitamins
Service rating: Very quick delivery, thank you
Product: I started taking these to overcome depression. After a while I stopped them, but realised I still needed them. They do wok.
Service rating: Great product, easy site and very quick delivery
Product: Not used this product before but have just started and have the same benefits as my last at a cheaper price
Service rating: Great value for money and a website I come back to regularly for my vitamins. The 5HTP help me sleep well and I can’t find them cheaper elsewhere.
Product: I’m taking these to help me sleep and they really work. I wake up feeling refreshed and awake
Service rating: Efficient delivery, quality product
Product: Good quality product, helps keep my mood lifted
Service rating: Always a good and reliable company. I've used them for years for my 5HTP and am very pleased with the product, packaging, swift delivery and offers.
Product: I've used this for years and have not had a depressive episode for 11 years. It has changed my life, literally.
Service rating: Quick, efficient, a quality product at a reasonable price.
Product: Quality product, have a lack of serotonin

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