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O2B 5-HTP High Strength

5.0 (1 review)

$ 44.95

O2B 5-htp is a high-dose 1-a-day capsule to support normal sleep patterns, mood, and appetite. We make this popular supplement using seeds from the African plant Griffonia simplicifolia, for your body to utilise in the biosynthesis of the neurotransmitters serotonin and melatonin.

$ 44.95

47 in stock

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5-HTP (5-Hydroxytryptophan) is a naturally occurring amino acid that the body can use to synthesize the neurotransmitter serotonin and the hormone melatonin.

As a neurotransmitter, serotonin carries messages between the brain and organs throughout the body, playing a key role in the connection between the gut and brain. Serotonin is known as the ‘feel good’ neurotransmitter and melatonin is of course, the hormone that increases production in the afternoon/evening to tell our body to prepare for sleep.

Healthy serotonin and melatonin production can support mood, sleep quality, normal stress responses and brain function.


  • Natural serotonin and melatonin production
  • Normal sleep patterns and circadian rhythm
  • Mood and well-being
  • Those who have a depleted ability to produce serotonin due to stress or overuse of recreational drugs.


Each Capsule Contains:

  • 5-HTP 100mg
  • From Griffonia simplicifolia plant seeds
  • Encapsulating aids


Adults take 1-2 capsules before bed or as directed by your healthcare professional.


  • If taking prescription medication or have known sensitivities, please consult your health care professional before taking this product.
  • Do not take if on L-dopa and Parkinson’s disease treatments.
  • If you are on antidepressants or prescription medication, please consult your health care professional before taking 5-HTP.

1 review for O2B 5-HTP High Strength

  1. Excellent product!

    Review by Gail

    I find O2B 5-HTP superb….April ’19

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Please note that under the NZ Dietary Supplements Regs 1985 we are not able to publish Testimonials that suggest that any of our natural supplements can diagnose, treat, cure, change or prevent any disease, disorder or chronic condition. Please be mindful of these restrictions when you leave your review, avoid the use of words like ‘treat, ‘cure’, ‘pain’, ‘fix’ or the names of specific conditions or diseases. We welcome recommendations and comments about our customer service, delivery, packaging or how much we care for you, naturally :-)
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* Disclaimer: Information on this website is for your general knowledge only. It is not intended to replace qualified medical advice nor intended to diagnose, treat, cure or prevent any disease. Do not disregard medical advice or postpone consultation with your health care professional because of information that you have read on this website. Always consult your doctor or other qualified health care professional regarding a medical condition. Always read the label of any natural health products you purchase and use only as directed. Consult a health care professional if symptoms persist. Customer reviews reflect individual experiences and results may vary.

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