Double Strength 5 HTP Review


Last modified: November 5, 2022

  • Value for money
  • Ingredients
  • Effectiveness
  • Testimonials

Double Strength 5 HTP Overview

Here’s our Double Strength 5 HTP Review. 5HTP comes from the seeds of the african plant (Griffonia simplicifolia plant). This product plays a vital role in the health and well being of the user. Double Strength 5 HTP helps with mood, anxiety,sexual desire,sleep,appetite, digestion and memory. Serotonin soothes and calms and creates feelings of contentment. It is also the precursor to the antioxidant and sleep enhancer called melatonin, which is produced in the pineal gland by the conversion of serotonin. 

What does Double Strength 5 HTP do?

  • Helps regulate natural sleep patterns
  • Increases well-being
  • Helps reduce anxiety

Manufacturer Description

5HTP comes from the seeds of the Griffonia simplicifolia plant. 5-HTP is viewed as the nutritional precursor to the mood enhancer neurotransmitter serotonin. Serotonin plays a vital role in health governing mood, anxiety, sleep, appetite, sexual desire, digestion and memory.


  • Unsuitable for pregnant or lactating women.

Consumer Testimonials

“I have been taking these on and off for over a year now. I have to say that when I have been taking these tablets that I have noticed a difference in myself. My mood picks up and I am more focused in my day-to-day life. I am a busy mum and have suffered from mild depression so have my good days and my bad days. I have not had experienced any side effects and they work for me so I have them on my to buy list again.”


“This is an excellent product. I have only been taking it for 6 days and already I am feeling less anxious and more settled. Although I still have dips in my mood, I am sleeping better and don’t feel perpetually in a dark, despairing place! Thank you so much for this wonderful product!”


“I have found this product to be really helpful. I have felt a natural boost in mood just within 4 days of taking it and I feel that my sleep cycles are slowly being regulated. 10/10 would recommend.”


“This product is worth a try for couple weeks to feel benefits. It has helped with my moods, I have had no side effects, but would like something stronger to help me sleep.”


“I never thought that something from a health food shop could as well as – if not better than – the things you buy on prescription when you’re feeling low. I woke up feeling great and couldn’t understand why and then remembered the 5HTP tablets I’d taken the day before!”


“Great product I used these after the doctor asked me to go take anti-depressant I said no and choose this natural substitute had worked well for me. Would recommend to anyone no side effects either. Will purchase again.”

Video Testimonials


What is the recommended dosage of 5 HTP and when should I take it?

We recommend that if you take this supplement as a dietary supplement you should take 1-2 tablets daily. Results are most noticeable if you take it just before bed with a light carbohydrate snack. On the other hand if you are looking to use this supplement as a nootropic you can just take around 300-500mg a day. So considering each tablet contains around 200mg, you should take two a day for the perfect amount. However, before taking it you should always run it past your GP and make sure that the ingredients are all safe for you.

Who is 5 HTP for?

5 HTP is for anyone who is looking to improve their mood, focus, digestion and more. However, it is important to note that there are some people that shouldn’t take this supplement. For example, pregnant women and those below the age of 18 shouldn’t take this supplement.

Is 5 HTP a safe supplement?

5 HTP is simply adding more naturally occurring substances to your body so this supplement is incredibly safe. In more detail, your body uses 5 HTP naturally to help assist the production of serotonin and melatonin. So by adding more of this to your body, it’s not harmful.

Having said that, it is important to note that 5 HTP should not be taken in conjunction with any type of SSRI’s (selective serotonin re-uptake inhibitors). This is because they can confuse your body as both directly affect your serotonin levels. So if you are taking SSRI’s for anything like depression you should avoid this supplement.

What's in Double Strength 5 HTP

  • Bulking agents (Dicalcium Phosphate, Mycrocrystalline Cellulose).
  • Griffonia seed – contains the herbal compound 5-HTP. This is used to synthesize serotonin, alleviating stress and promoting well-being and natural sleep patterns.
  • Anti-caking agent (Magnesium Stearate, Silicon Dioxide).

Ingredient Explanations

Griffonia seed

Griffonia simplicifolia is an African shrub, the seeds of which are used to create 5-hydroxytryptophan (5 HTP), marketed as a supplement to boost mood, reduce anxiety and improve sleep. 5 HTP is made by the body from the amino acid tryptophan. The body converts 5 HTP into the mood- and behaviour-regulating chemical serotonin. Therefore, Griffonia supplements are believed to raise serotonin levels in the brain, thereby increasing a feeling of well-being. However, Griffonia they do have possible side effects.

Our Verdict

Nu U Nutrition claim to buy their raw ingredients in “quantities twenty times greater than the next nearest competitor, ensuring we can extend the very lowest prices to our customers without ever sacrificing on quality.” The reviews are certainly favourable, and the price is undoubtedly spot-on. They offer a 100% money back guarantee, and free shipping on all orders over £20. A quality mood-enhancing product at a great price.

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