phone number Freephone: 0800 0488 278 free delivery Free express delivery on all orders over £50

5-HTP 100mg (270 Capsules) 3 Month Supply

/, 5 HTP/5-HTP 100mg (270 Capsules) 3 Month Supply

5-HTP 100mg (270 Capsules) 3 Month Supply

£74.97 £49.99

Rated 4.88 out of 5 based on 3 customer ratings
(3 customer reviews)

According to Michael T. Murray, America’s leading naturopathic doctors, 5-HTP is a natural amino acid which can safely and effectively regulate low serotonin levels, which have been linked to depression, obesity, insomnia, migraines and anxiety.

  • 3 Month Supply (270 capsules, take up to 3 times a day)
  • Stress, poor nutrition and your lifestyle can sabotage your body’s ability to produce essential hormones such as serotonin.
  • Low serotonin levels have been found to trigger emotional eating, depression, cravings, sleep problems, as well as anxiety.
  • 5-HTP is 100% natural and has been found to boost the body’s natural serotonin production
  • Suitable for vegetarians.
  • Premium quality (avoid cheap low quality extract from overseas)
  • Manufactured in the UK to GMP standards and ISO9001:2008 quality assurance certification
SKU: 0721762628898 Categories: ,

Product Description

Do you find yourself craving sweet or savory snacks when times get tough? Do you find yourself tired when you wake up in the morning? Do you find it difficult to resist to cravings in between meals?

If any of these sound familiar you are not alone. Our modern lifestyles, day to day stress, and western diets rich in refined carbohydrates and processed foods can cause havoc on your body’s natural ability to produce important hormones that regulate everything from your mood to your fat storage.

One of these hormones is called serotonin, and low levels have been found to trigger emotional eating, depression, cravings, sleep problems, as well as anxiety.

Our 5-HTP supplement is 100% natural, and made from the seeds of Griffonia simplicifolia, a plant native to Africa. Each easy to swallow capsule provides 100mg of pure 5-HTP in amino acid form.

How does 5-HTP (5-hydroxytryptophan) and Serotonin work?

Serotonin is an important hormone especially when it comes to maintaining a healthy weight as it signals to the brain when it has enough food, and as a result reduces your appetite. It also improves your mood, and raises your energy levels making it easier to stick to diet or exercise routine.

5-HTP (5-hydroxytryptophan) is created by the body from tryptophan which is an essential amino acid which you get from food. This is later converted by the body into 5-HTP, and it is then changed into serotonin which helps regulate mood and behaviour.

Our supplement takes advantage of the Griffonia simplicifolia seed, which has been found to contain the 5-HTP amino acid, that your body needs needs to produce serotonin naturally.

But thats not all… The university of Maryland medical centre states that studies have found that 5-HTP may also have a positive effect on1:

  • Sleep
  • Mood
  • Anxiety
  • Pain sensation
  • As well as appetite

Find out more about the science behind 5-htp in our clinical studies section.

Get the recommended effective dosage of 5-HTP per serving

In studies, 5-HTP was found to be most effective between 100-300mg/day. As a result, we provide 100mg of 5-HTP per capsule, and enough in the bottle for up to 300mg per day.

Make sure to avoid lower quality supplements which compensate by adding fillers or other ingredients to fill up their capsules and reduce their costs.

Clinical Studies: Key Findings from the 5-HTP studies

According to the latest studies:

  • Poor diet, stress, and a modern lifestyle can cause the body to produce less serotonin
  • Low serotonin levels have been found to cause emotional eating, depression, cravings, sleep problems, as well as anxiety2.
  • 5-HTP provides the body with the raw material needed to produce serotonin, helping increase serotonin levels naturally3.

Find out more in our clinical studies section.

Safety information and side effects reported for 5-HTP

Do not take 5-HTP if you are taking a prescription antidepressant without first consulting your doctor.

No significant side effects have been reported for 5-HTP supplementation.

Our supplement is caffeine free, and does not contain any genetically modified ingredients.

Accept no compromise with Better Nutrition Labs Products

At Better Nutrition Labs we stand behind our mission of providing high quality supplements, featuring premium ingredients and effective formulas.

All our supplements are proudly manufactured in the UK to GMP standards and ISO9001:2008 quality assurance certification.

Same day dispatch for faster world wide delivery to your door

Order before 3pm GMT (Monday to Friday), and we will dispatch your order same day. All other orders are dispatched the next working day.

Our packages are discrete and letterbox friendly for your convenience.

Want to learn more about how 5-HTP and Serotonin works?

Check out our studies page for more information


[2] Cauffield JS, Forbes HJ. Dietary supplements used in the treatment of depression, anxiety, and sleep disorders. Lippincotts Prim Care Pract. 1999; 3(3):290-304

[3] Birdsall TC. 5-Hydroxytryptophan: a clinically-effective serotonin precursor. Altern Med Rev. 1998;3:271280.

Each capsule provides: %NRV
5-HTP (12 mg 8:1 griffonia seed extract) equivalent to 100mg **

*NRV=Nutrient reference value ** = No nutrient reference established

Ingredients: Brown Rice Flour (Bulking Agent), Hydroxypropyl Methylcellulose (HPMC) Capsule Shell (Vegetarian), 5-HTP 8:1 griffonia seed extract, Magnesium Stearate (Vegetarian) (Flowing Agent).

Suitable for vegetarians.

Manufactured in the UK to GMP standards for Better Nutrition Labs.

Guidelines for best results:

  • Take 1 capsule with main meals with a full glass of water
  • Do not exceed recommended dose
  • For best results take 2-3 capsules a day on an empty stomach

Start with 2 capsules a day, and allow your body time to start


  • Keep out of direct sunlight in a cool dry place out of sight and reach of children
  • Do not use if inner seal is damaged

Angst J, Woggon B, Schoepf J. The treatment of depression with L-5-hydroxytryptophan versus imipramine. Results of two open and one double-blind study. Arch Psychiatr Nervenkr. 1977;224:175–186.

Attele AS, Xie JT, Yuan CS. Treatment of insomnia: an alternative approach.Altern Med Rev. 2000;5(3):249-259.

Birdsall TC. 5-Hydroxytryptophan: a clinically-effective serotonin precursor. Altern Med Rev. 1998;3:271–280.

Byerley WF, et al. 5-Hydroxytryptophan: a review of its antidepressant efficacy and adverse effects. J Clin Psychopharmacol. 1987;7:127-137.

Cangiano C, et al. Effects of oral 5-hydroxy-tryptophan on energy intake and macronutrient selection in non-insulin dependent diabetic patients. Int J Obes Relat Metab Disord. 1998; 22:648-654.

Cangiano C, Ceci F, Cascino A, et al. Eating behavior and adherence to dietary prescriptions in obese adult subjects treated with 5-hydroxytryptophan. J Clin Nutr. 1992;56:863-867.

Caruso I, Sarzi Puttini P, Cazzola M, et al. Double-blind study of 5-hydroxytryptophan versus placebo in the treatment of primary fibromyalgia syndrome. J Int Med Res. 1990;18:201-209.

Cauffield JS, Forbes HJ. Dietary supplements used in the treatment of depression, anxiety, and sleep disorders. Lippincotts Prim Care Pract. 1999; 3(3):290-304.
Ceci F, Cangiano C, Cairella M, Cascino A, et al. The effects of oral 5-hydroxytryptophan administration on feeding behavior in obese adult female subjects. J Neural Transm. 1989;76:109-117.

Curcio JJ, Kim LS, Wollner D, Pockaj BA. The potential of 5-hydryxtryptophan for hot flash reduction: a hypothesis. Altern Med Rev. 2005;10(3):216-21.

DeBenedittis G, Massei R. Serotonin precursors in chronic primary headache. A double-blind cross-over study with L-5-hydroxytryptophan vs. placebo. J Neurosurg Sci. 1985; 29:239-248.

Elko CJ, Burgess JL, Robertson WO. Zolpidem-associated hallucinations and serotonin reuptake inhibition: a possible interaction. J Toxicol Clin Toxicol. 1998;36(3):195-203.

Freedman RR. Treatment of menopausal hot flashes with 5-hydroxytryptophan. Maturitas. 2010 Apr;65(4):383-5.

Gardner DM, Lynd LD. Sumatriptan contraindications and the serotonin syndrome. Ann Pharmacother. 1998;32(1):33-38.

Iovieno N, Dalton ED, Fava M, Mischoulon D. Second-tier natural antidepressants: Review and critique. J Affect Disord. 2010 Jun 24.

Joffe RT, Sokolov ST. Co-administration of fluoxetine and sumatriptan: the Canadian experience. Acta Psychiatr Scand. 1997;95(6):551-552.

Joly P, Lampert A, Thomine E, Lauret P. Development of pseudobullous morphea and sclero-derma-like illness during therapy with L-5-hydroxytryptophan and carbidopa. J Am Acad Dermatol. 1991;25(2):332-333.

Juhl JH. Primary fibromyalgia syndrome and 5-hydroxy-L-tryptophan: a 90-day open study. Altern Med Rev. 1998;3:367-375.

Mason BJ, Blackburn KH. Possible serotonin syndrome associated with tramadol and sertraline coadministration. Ann Pharmacother. 1997;31(2):175-177.

Meyers S. Use of neurotransmitter precursors for treatment of depression. Altern Med Rev. 2000;5(1):64-71.

Perry NK. Venlafaxine-induced serotonin syndrome with relapse following amitripyline. Postgrad Med J. 2000;76(894):254.

Puttini PS, Caruso I. Primary fibromyalgia and 5-hydroxy-L-tryptophan: a 90-day open study. J Int Med Res. 1992;20:182-189.

Rakel D. Rakel Integrative Medicine, 2nd ed. Philadelphia, PA: Saunders; 2008;47.

Reibring L, Agren H, Hartvig P, et al. Uptake and utilization of [beta-11c] 5-hydroxytryptophan (5-HTP) in human brain studied by positron emission tomography. Pyschiatry Research. 1992;45:215-225.

Ribeiro CA. L-5-Hydroxytryptophan in the prophylaxis of chronic tension-type headache: a double-blind, randomized, placebo-controlled study. Headache. 2000 Jun;40(6):451-6.

Shaw K, Turner J, Del Mar C. Are tryptophan and 5-hydroxytryptophan effective treatments for depression? A meta-analysis. Aust N Z J Psychiatry. 2002 Aug;36(4):488-91.

Sternberg EM, Van Woert MH, Young SN, et al. Development of a scleroderma-like illness during therapy with L-5-hydroxytryptophan and carbidopa. New Eng J Med. 1980;303:782-787.

Toner LC, Tsambiras BM, Catalano G, et al. Central nervous system side effects associated with zolpidem treatment. Clin Neuropharmacol. 2000;23(1):54-58.

Van Praag HM. Management of depression with serotonin precursors. Biol Psychiatry. 1981;16:291-310.

Zmilacher K, et al. L-5-hydroxytryptophan alone and in combination with a peripheral decarboxylase inhibitor in the treatment of depression. Neuropsychobiology. 1988;20:28–33.


3 reviews for 5-HTP 100mg (270 Capsules) 3 Month Supply

Please note: The reviews shown below are the independent views of Better Nutrition Labs customers, and should not be regarded as medical advice, and nor do we expressly endorse or support the views expressed here

    Show reviews in all languages (16)

  1. Rated 5 out of 5


    Great way to take the edge off stress and improve your mood.

  2. Rated 5 out of 5


    Could feel the difference within a week & no side effects would recommend

  3. Rated 5 out of 5


    Great product, works really well.

Add a review

Your email address will not be published. Required fields are marked *

You may also like…

  • Offer

    5-HTP 100mg

    Rated 4.87 out of 5
    £24.99 £19.99
    Add to cart Details
  • Offer

    5-HTP (180 Capsules) 2 Month Supply

    Rated 4.86 out of 5
    £49.98 £36.99
    Add to cart Details

Don't shop without our free health supplements buyers guide

Subscribe to our newsletter to receive our latest findings, member only VIP promotions and our exclusive buyers guide, featuring the 9 most important factors to look for when buying health supplements to actually get results and stay safe.

Join our VIP club and get your complimentary buyers guide today!

Our buyers guide is designed to help you become a more savvy consumer, and help you avoid the dangers of buying supplements which could not only waste your money, but have damaging health consequences.

We take your privacy seriously. No spam ever, see our terms and conditions.

Thank you, your buyers guide is waiting in your email inbox.

Whilst you wait, check out our most popular fat burner.