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O2B 5-HTP High Strength

$ 19.95$ 39.91

5.0 (3 reviews)

O2B 5HTP is a high-dose 1-a-day capsule to support the body regulate sleep, mood and appetite. It is made from the Griffonia simplicifolia seed, a naturally occurring amino acid that is the precursor in the biosynthesis of the neurotransmitters serotonin and melatonin.

$ 19.95

26 in stock

$ 39.91

164 in stock

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Each capsule of O2B 5-HTP (5-Hydroxytryptophan) is a high dose of this key building block for the neurotransmitters that help to regulate sleep, mood and appetite. Sourced from the seeds of the African plant Griffonia Simplicifolia and is a natural way to increase levels of Serotonin and Melatonin.  5-HTP is often recommended by nutritional orientated medical practitioners for sleep disorders, depression, anxiety, migraines and tension headaches, fibromyalgia, irregular eating habits, premenstrual syndrome (PMS), attention deficit-hyperactivity disorder (ADHD), and more serious conditions including Parkinson’s disease.

Support for:

  • Disordered eating and Eating Disorders
  • Tension headaches & Migraines
  • Insomnia & Poor Sleep Patterns
  • Shift Workers
  • Low & Irregular moods
  • Menstrual irregularities & PMS
  • Depression and Anxiety
  • Fibromyalgia

Key Benefits:

  • Supports normal sleeping patterns
  • Encourages natural serotonin & melatonin production
  • Promotes the feeling of well being
  • Assists with stress relief
  • Helps to regulate appetite
  • Reduces Pain sensations
  • Helps to regulate hormone production
  • Reduces anxiety and tension

5-HTP is a naturally occurring amino acid that readily crosses the blood brain barrier as it is the intermediate step between tryptophan and serotonin and melatonin synthesis.

Serotonin soothes and calms the nervous system and helps create feelings of wellbeing and supports balanced mood and the body’s response to stress. Serotonin levels affect sleep, appetite, body temperature, sexual behavior, and pain sensation. Since 5-HTP supplementation increases the synthesis of serotonin, it is in several health conditions and diseases where serotonin is believed to play an important role.

Low levels of Melatonin are associated with anxiety and mood disorders, lowered basal body temperature, insomnia, elevated estrogen/progesterone ratio, and immune suppression. Because melatonin has a pivotal role in regulating body temperature, the sleep/wake cycle, female reproductive hormones, and cardiovascular function, the effect of disrupted melatonin levels is widespread, manifesting in a variety of physical and even psychological disorders.

Supplementation with O2B 5-HTP is key to improving the serotonin/melatonin pathway in the body to help regulate mood, sleep patterns, hormone production and pain sensation.


Each Capsule Contains:

  • 5-HTP 100mg
  • From Griffonia simplicifolia plant seeds
  • May contain encapsulating aids

Contains No:

Yeast, corn, wheat, artificial flavours or preservatives.


Adults take 1-2 capsules daily (best before bed) or as directed by your health care 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.

3 reviews for O2B 5-HTP High Strength

  1. No migraine since day one of taking this product!

    Review by Barbara, Nelson

    I have suffered from migraines for several years since going through menopause. I made huge steps by changing my diet but still suffered from two migraines a week until taking your 5-HTP.

    I now have a crystal clear mind and haven’t had a migraine since day one on 5-HTP.* I take 200mg daily.

  2. Incredible Product!

    Review by Lianne

    O2B 5- HTP has given me great sleeps. It has also helped with my anxious thoughts/ feelings, given me energy and now total wellbeing! Thanks O2B Healthy *

  3. Excellent product!

    Review by Gail

    I find O2B 5-HTP superb….helps me have a very restful sleep and feel great in the morning. April ’19

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