5-HTP Powder

100% Pharmaceutical grade, Bulk Nutrients' 5-HTP Powder is an amino acid commonly used to help appetite suppression, sleep quality and mood.

4.3 from 22 reviews. Read all reviews or leave your own.
  • Lactose Free
  • Gluten Free Ingredients
  • Vegetarian
  • Vegan
  • Taste
  • Mixability
  • Effectiveness
  • Value for Money

Pay your way! Checkout with AfterPay or Zip Pay when your order is over $100 AUD. Find out more

Great prices when buying in Bulk

  • 10g = AU$17
  • 40g = AU$65 (AU$16.25 each)

Pharmaceutical Grade 5 HTP Powder

5-Hydroxytryptophan (5-HTP) also known as oxitriptan is a naturally occurring amino acid and chemical precursor as well as a metabolic intermediate in the biosynthesis of the neurotransmitters serotonin and melatonin from tryptophan.

It is taken for many reasons, with studies showing it to have positive effects on appetite suppression, sleep quality, reduction of migraines, improvements to anxiety and mood. Bulk Nutrients' 5 HTP is derived from plants, so is a more natural form of 5-HTP.

5-HTP is suitable for people who are looking for increases in mood and happiness as well as those who want to tackle some of the mental issues surrounding weight loss.

It is advised that 5-HTP should not be taken by people on SSRIs or other types of antidepressants. Please seek medical advice before consuming this product if you also take SSRIs.

Worried about the taste of 5-HTP? It's now available in capsule form here!

Directions & Ingredients

5 HTP Directions

5-HTP can be taken any time of day, however many users consume it before sleeping.

A typical dosage of 5-HTP is 100mg.

As the serve is very small, we recommend using microscales when dosing.


100% Pharmaceutical grade 5-Hydroxytryptophan Griffonia Simplicifolia Seed Extract.




Keep well sealed, protect from moisture, light and heat.

Bulk Nutrients is proudly Australian owned and operated with all products developed, blended and packed locally in our facility in Grove, Tasmania. Find out more!

Frequently asked questions about 5-HTP Powder

How does 5-HTP taste?

5-HTP is unflavoured and is generally considered to be bitter. You can purchase this product in capsule here.

What is 5-HTP made from?

5-HTP Powder is derived from Griffonia Seeds.

Are samples available of this product?

Sorry we do not provide samples of 5-HTP.

How is 5-HTP packaged?

Bulk Nutrients' 5-HTP is packaged in resealable 10g pouches.

5-HTP Nutrition Panel

5-HTP Powder Nutrition Information
Servings per 10g package: 100 Servings size: 100mg
Average Quantity Per Serving Average Quantity Per 100g
Energy (kj) 0 0
Protein (g) 0 0
Fats (g) 0 0
  (saturated) (g) 0 0
Carbohydrates (g) 0 0
  (sugars) (g) 0 0
Sodium (mg) 0 0
5-Hydroxytryptophan (mg) 100 100,000

Formulated Supplementary Sports Food. Not suitable for children under 15 years of age or pregnant women. Should only be used under medical or dietetic supervision. This product is not a sole source of nutrition and should be consumed in conjunction with a nutritious diet and appropriate physical training or exercise program.

5-HTP Powder Reviews

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