Home > 5-HTP Nutritional Supplements > NOW Supplements, 5-HTP (5-hydroxytryptophan) 200 mg, Double Strength, Neurotransmitter Support*, 120 Veg Capsules

NOW Supplements, 5-HTP (5-hydroxytryptophan) 200 mg, Double Strength, Neurotransmitter Support

Neurotransmitter Support, Our Regular Strength Product, 120 Veg Capsules, Gluten Free, 5 Htp, Now Supplements, Soy Free, 200 Mg

H&F Rating 92 reviews
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What We Like

  • Made from the seed of griffonia simplicifolia that makes it safe to use
  • 5-HTP is an intermediate metabolite between the amino acid tryptophan and serotonin that supports positive mood
  • Comes with 200 mg capsule that offers more strength


  • may cause nausea

Results of our analysis:

We analyzed 39,778 reviews for 92 products in the 5-HTP Nutritional Supplements category.

We then analyzed 92 reviews for this product. Of these, 16 reviews were recent.

Around 70% of reviews were positive and about 25% were negative.

Final Score:

8.02 out of 10, based on these factors:

  • Easy to swallow
  • Effectiveness
  • Ingredients quality
  • Overall satisfaction
  • Packaging
  • Portion size
  • Smell
  • Taste
  • Value for money
  • What buyers say about NOW Supplements, 5-HTP (5-hydroxytryptophan) 200 mg, Double Strength, Neurotransmitter Support

    I don't know why thickness is what I'm supposed to rate it on, but I use it to help my serotonin slumps from time to time, and I think value for money is great, I don't use this for sleep but I did use it to help my

    I took melatonin for the first time in a long time and slept 9 hours a night for the first two weeks. Then, I fell asleep 2 hours a night, but I still plan to see a sleep doctor.

    It has made a big difference to my health, if you know you have low serotonin, you should ask your naturopath about the 5-htp.

    It would be a good idea to talk to your doctor about the supplement first, because it can help treat a serotonin deficiency, whether it's naturally occurring or chronic, or caused by irresponsible extracurricular activities.

    The package and product were in good condition.

    Common Questions


    Is this product free of animal products?


    It doesn't do anything for me.


    Is the bottle of taurine a lab product or an animal product?


    It's vegan so it doesn't contain animal products.


    Is this regular HTP that isn't time release?


    Hi, this is regular.


    I read that 5-htp should be taken with tyrosine. I don't know if it has tyrosine or just taurine.


    It just has taurine in it.


    Does it arrive in peru?


    Not sure, the seller would have to respond.

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