5-HTP 100mg (Previously named Happy Days)

100mg 5-HTP with zinc and B vitamins

60 Tablets
1-2 month supply
£6.97 was £13.95

5-HTP 100mg (Previously named Happy Days)

60 Tablets

Key Features

  • A natural way to increase your levels of 5-htp
  • Contains vitamin B3, B6 and zinc to support normal psychological and neurological functions
  • Also includes vitamin C, zinc, folic acid and biotin

Product Overview

  • Gluten Free
  • Suitable for Vegans & Vegetarians
  • Gelatin Free

What is 5-HTP?

5-Hydroxytryptophan, more commonly known as 5-HTP, is is derived from the amino acid L-tryptophan. 5-HTP is converted in the body into the brain chemical messenger serotonin.

Why Healthspan's 5-HTP?

The 5-HTP used in Healthspan’s 5-HTP 100mg is sourced exclusively from the seeds of the West African Griffonia simplicifolia tree, the only natural source available. Each tablet contains 100mg of pure 5-Hydroxytryptophan along with other important nutrients including vitamin B3, vitamin B6, vitamin C, zinc, folic acid and biotin. These nutrients have been included for their numerous associated benefits, none more so than vitamin B3. B6 and zinc which support normal psychological and neurological functions.

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Product Information


Initially one tablet daily, increasing to a maximum of three daily if required. Use for three months, stop and review

Key nutritional values

Typical values, % NRV (where applicable) in brackets:

L-5-Hydroxytryptophan (5-HTP) 100mg
Vitamin B3 30mg (166)
Vitamin B6 2.8mg (200)
Vitamin C 80mg (100)
D-Biotin 50mcg (100)
Folic Acid 100mcg (50)
Zinc 5mg (50)


Maltodextrin, Vitamin C, L-5 Hydroxy Tryptophan (5-HTP - Griffonia Seed Extract), Cellulose, Vitamin B3, Coating (Hypromellose, Glycerin - of vegetable origin, Iron Oxide), Zinc Citrate, Vitamin B6, Stearic Acid - of vegetable origin, Silica, Magnesium Stearate - of vegetable origin, Folic Acid, D-Biotin.

Perfect Partners to 5-HTP

These products work in perfect synergy alongside 5-HTP

Independent Reviews for Happy Days® 5-HTP Tablets

We use the independent Feefo service to collect our reviews - so you can be sure that they are verified and unedited Find out more

Overall Rating: 4.08 / 5 stars, based on 25 reviews

22 February 2015

product arrived intact in line with expectations.

22 February 2015

Physiologically they support what is perception of what the tables are presumed
to do.

22 February 2015

Reliable, fast delivery

21 February 2015

Helps with anxiety

20 February 2015


19 February 2015

I bought three different supplements, so I'm not sure which one '60 tablets' refers to.

19 February 2015

5htp to help me with brain fog and cognitive function

19 February 2015

Everything is ok

18 February 2015

Healthspan always has vegetarian versions of the supplements that I want.

18 February 2015

excellent prices, quality products, fast delivery.

17 February 2015

Its too early to really tell if the product is giving me any benefits but I think it is.

16 February 2015

Quick delivery as usual.

16 February 2015

Good value for money. Very good product

16 February 2015

Good items. Good quality.

15 February 2015

Prices are competitive and the website is easy to use.

13 February 2015

I stopped taking these (5HTP) after 4 days as they didn't agree with me. They made me feel nauseous and very, very tired, therefore I cannot really rate them good or bad. They simply didn't suit me, however, since it seems I must put something, I'll have to rate them as bad rather than unsuitable.

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Customer Service

13 February 2015

I have recently been diagnosed with Fybromyalgia which I understand this product may help. It is early days, so cannot tell at this stage.

13 February 2015

seems to work pretty well...getting pretty average sleep.....all in all not groundbreaking but OK

13 February 2015

Quick efficient value for money service

13 February 2015

I ordered 5HTP on 19 January 2015, but have not received it yet. the order ref no is HW11193334.

12 February 2015

I believe that the items that I order do help me dealing with life a little easier

12 February 2015

will use again

12 February 2015

too early to assess results

Not suitable for pregnant or lactating women. May cause drowsiness; do not drive or operate machinery if affected. If you are taking any prescribed medication or have any medical conditions always consult your doctor or pharmacist before taking vitamins or supplements. Keep out of sight and reach of young children. Do not exceed stated recommended intake. Food supplements must not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Store in a cool, dry place. If you experience an adverse reaction, stop taking the supplement and seek medical advice.