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5-HTP Plus

5-HTP Plus

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5-HTP Plus

This nutritional food supplement contains 5-HTP – the safe precursor to serotonin. It also contains the nutrients necessary for the conversion of 5-HTP to serotonin. Made from the natural shrub Griffonia simplicifolia, with added magnesium and vitamin B6.
Product Code: 2187/2188

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Free delivery on UK orders over £25. All prices shown inclusive of VAT, except where stated. Place order before 12pm and we will despatch your order the same day.

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This nutritional food supplement contains 5-HTP – the safe precursor to serotonin. It also contains the nutrients necessary for the conversion of 5-HTP to serotonin. Made from the natural shrub Griffonia simplicifolia, with added magnesium and vitamin B6.

  • 5-HTP Plus contains 5-HTP from the natural shrub Griffonia simplicifolia
  • 5-HTP is the safe precursor to serotonin - This supplement also contains the other nutrients necessary for the conversion of 5-HTP to serotonin - magnesium & vitamin B6
  • Magnesium is involved in many essential metabolic processes relating to mental wellbeing and contributes to a reduction of tiredness and fatigue, normal psychological function, normal energy-yielding metabolism and the normal functioning of the nervous system
  • Vitamin B6 contributes to the normal function of the nervous system, psychological function, the regulation of hormonal activity and the reduction of tiredness and fatigue


5-HTP Plus1 capsule will provide on average:

Active Nutrient Strength %NRV*
Vitamin B6 as Pyridoxal-5-Phosphate 5.0mg 357
Magnesium 50.0mg 13
L-5-Hydroxytryptophan (5-HTP) 50.0mg *

+NRV = Nutritional Reference Value
* Indicates no NRV


Griffonia simplicifolia extract providing 5-HTP, magnesium citrate, pyridoxal-5-phosphate, capsule shell (vegetable cellulose).

Suggested Intake:

1 to 2 capsules daily of 5-HTP Plus as a food supplement, preferably before bedtime with a carbohydrate snack, or take as directed by a practitioner.

Suitable for:

Vegetarians, vegans and for people with Candida and yeast sensitivities.


This product is not suitable for pregnant or lactating women, or those taking other remedies that effect serotonin levels. Consult your doctor for more information.

Non-Active Ingredients:

Vegetable cellulose.

Non GM & Free From:

Wheat, yeast, starch, gluten; dairy; added sugars, colourings, flavourings & preservatives.


Keep cool, dry & out of direct sunlight.

Keep all supplements 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. Adverse reactions to supplements are rare, but If you experience an adverse reaction stop taking the product and contact your practitioner or one of our nutritional therapists. Sometimes a supplement will suit one person but not another.

  • 18-Nov-2018

    Appear to be good quality. Easy to take.
  • 01-Nov-2018

    My sense of well-being has improved
  • 21-Sep-2018

    Repeat order, says it all!
  • 17-Jun-2018

    3 for 2 promotion on 5htp
  • 14-Jun-2018

    erg goede produkten zonder rommel
  • 08-Jun-2018

    Swapped from my usual brand as I felt they weren’t working as effectively.
    Could feel these kick in within 20 mins. and so far they seem to be doing the job of lifting my mood and general enthusiasm.
  • 16-May-2018

    Have tried 5HTP with other companies.. and the effect has been amazing. Took it from here and no effect at all..going back to old company. (was taking 2 pills daily)

    Our Response:

    Hi - thanks for yuor comment about 5 HTP and I'm sorry to hear this product didn't suit you so well. You may wish to email [email protected] who would be best placed to advise on the levels of 5HTP and what might be  more  helpful for you.

    In the meanwhile, I will refund you for the pot of...
    Read More
  • 14-Apr-2018

    Brilliant, it was very easy and efficient.
  • 10-Mar-2018

    Posologie peu détaillée. Dommage
  • 04-Mar-2018

    Excellent service. ........
  • 08-Feb-2018

    This product was recommended to me and it has helped.
  • 21-Jan-2018

    Item was as was required.
  • 06-Dec-2017

    I have been using this product for many years after coming off a traditional anti-depressant. The Cytoplan 5htp definitely performs better than plain 5htp from cheaper sources. I also like the fact that it comes in 50mg capsules, enabling you to reduce gradually over time.
  • 23-Nov-2017

    je fais confiance au produit
  • 06-Nov-2017

    Recommendation from my nutritionist, has help emensley with my symptoms.
  • 03-Nov-2017

    Very quick delivery, great products
  • 20-Sep-2017

    It does help maintain a good sleep pattern and better moods.
  • 16-Sep-2017

    Very good for boosting low moods.
  • 15-Sep-2017

    Works for me everynight. This product has helped with insomnia. Thankyou Cytoplan.

    Our Response:

    Pleased you are sleeping better :)

    Best wishes-
  • 01-Sep-2017

    Been taking religiously for 3 weeks can't feel any change in my poor sleep yet. Maybe I need more time

    Our Response:

    Hi - thanks for your feedback.

    Generally we would expect you see benefit  by now so it might be worth you considering completing a health questionnaire - this is a free of charge, no obligation service we offer, and if you complete  a questionnaire, it is assessed by one of our...
    Read More
  • 25-Aug-2017

    It really helps me to deal with the every day stress in the work.
  • 23-Aug-2017

    Really helps my mood. Great product
  • 31-Jul-2017

    Helps promote good quality sleep
  • 21-Jul-2017

    Produce recommended by my therapist and has worked wonderfully.
  • 20-May-2017

    It does what its expected to do perfectly
  • 03-Apr-2017

    Brilliant and no fuss. Love it.
  • 01-Apr-2017

    Top quality product as always.
  • 24-Mar-2017

    Better than cheaper alternatives which don't work as well.
  • 23-Jan-2017

    has helped with my symptoms of menopause
  • 14-Jan-2017

  • 09-Jan-2017

    Helps me sleep and seems to give me a lift.
  • 07-Jan-2017

    i dont know if its working yet. i bought it for feelings of mild depression. might have to speak to my gp. i exercise regularly and am busy. so not sure why i get it

    Our Response:

    Hi, thank you for your feedback. We wouldn't generally suggest 5HTP for  mild depression - you may benefit from speaking with our nutritional therapist who may be able to assist with specific support for you. This is a free of charge service with no obligation and you can either request a health...
    Read More
  • 17-Dec-2016

    Have been taking 5HTP for 3 weeks (2 tablets a day) to combat feelings of depression - I definitely feel brighter and more positive about life!!

    Our Response:

    Hi - that's great to hear!  So pleased you find our products suit you. Best wishes - Rachel
  • 16-Dec-2016

    A great product that helps with what we use it for.
  • 03-Dec-2016

    Helps promote a deeper sleep. Not waking up so early now. Yay!
  • 30-Nov-2016

  • 30-Nov-2016

    So far I feel my sleep pattern has improved, although it's early days
  • 25-Nov-2016

  • 24-Nov-2016

  • 23-Nov-2016

  • 15-Nov-2016

    I'm not entirely sure about this product - sometimes I seem to get a better sleep from using it and if I ever feel down, taking it does 'seem' to help
  • 30-Oct-2016

    Good product. Wanted to take it for a month but it's worked well so take still take it 3 months on. Helps with sleep.
  • 26-Oct-2016

  • 02-Oct-2016

    Good price for the best 5-htp I have ever tried.
  • 02-Oct-2016

    No response
  • 25-Sep-2016

    It has really helped me to sleep better
  • 25-Sep-2016

  • 24-Sep-2016

    As Above
  • 21-Sep-2016

    Fast delivery and very good quality product
  • 21-Sep-2016

    Fast delivery - very good quality product
  • 02-Sep-2016

  • 20-Aug-2016

    I love this product it's made a massive difference fast shipping
  • Show all reviews

    For UK-delivered orders that are under £25.00, we charge a nominal postage and packing fee of £1.95. UK orders above £25.00 are DELIVERED FREE OF CHARGE. 

    Dependent on weight, your order will either be sent by First Class post (Royal Mail) or via our nominated courier. A signature is required on receipt of the goods if delivered by our courier. 

    Please check all requirements (import taxes, customs regulations etc) regarding deliveries to countries outside the UK. Cytoplan Ltd cannot be held responsible for parcels that do not comply with the import regulations of the desination country.

    We cannot guarantee next day delivery, although you should receive your order within 2-3 working days. 

    If you have not received your order within 5 working days, please contact our Customer Services department.

    1. You can email our Customer Service department via our contact form here. 
    2. You can telephone on +44(0)1684 310099 
    3. You can write to us at Cytoplan Ltd, Unit 8 Hanley Workshops, Hanley Road, Hanley Swan, Worcester. Worcestershire.WR8 0DX