5-HTP Capsules

4.6 from 7 .


Earn at least 96 Whey Cool Points

Pay in four instalments for orders over $100

Package Size - 120 Capsules

Full product details

Maximum Purchase


Customers also bought

Bulk Nutrients' Gamma Aminobutyric Acid (GABA) help induce relaxation sleep though it can also lead to higher levels of muscle growth
214 reviews
Bulk Nutrients Valerian Sleep Support Capsules
10 reviews
Bulk Nutrients' L Tyrosine Powder lactose free and like all amino acids does not contain any gluten in the raw ingredients
146 reviews
Bulk Nutrients ZMA Complex Capsules
49 reviews
Bulk Nutrients L-Theanine 100g - Supports relaxation and positive mood
43 reviews
Bulk Nutrients Konjac Root Capsules
12 reviews
Bulk Nutrients' Liver Support Complex & Liver Supplement Vitamins contains a range of ingredients to help support your liver
59 reviews
Bulk Nutrients' N Acetyl Cysteine (NAC) Capsules is a specially modified form of the essential amino acid cysteine
16 reviews
Bulk Nutrients' Cissus Quadrangularis (10-1) Capsules are used by athletes to assist with injury recovery and promote suppleness
1 reviews

5-Hydroxytryptophan (5-HTP) Capsules

What are 5-HTP Capsules?

5-Hydroxytryptophan (commonly shortened to 5-HTP) also known as oxitriptan, is a naturally occurring amino acid and chemical precursor.

Our 5-HTP is derived from naturally occuring Griffonia Simplicifolia Seed Extract, resulting in a quality final product which is 100% pure.

Bulk Nutrients offers this in an easy to consume, capsulated 5-HTP form.

5-HTP Capsules derived from plants

Bulk Nutrients’ 5-HTP Capsules are derived from plants so are a more natural form of 5-HTP compared to some alternatives.

What is the 5-HTP Capsule Serving Size?

At Bulk Nutrients, we recommend a typical serving of 99mg (one capsule) at any time of the day, most users consume it before bed.

Buying 5-HTP online in Australia with Express Shipping

Bulk Nutrients offers an easy way to buy 5-HTP in Australia online, the best part is if your order is 3.5kg or under we’ll send it to you by express at no extra charge.

Directions & Ingredients

Directions for 5-HTP Capsules

A typical serving of 5-HTP is 1 Capsule (99mg) once a day.
5-HTP can be taken any time of day, however many users consume it before sleeping.


5-Hydroxytryptophan Griffonia Simplicifolia Seed Extract (contains polydextrose).


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

Frequently Asked Questions about 5-HTP Capsules

How do 5-HTP Capsules taste?

Capsulated products mask any unpleasant taste from the raw ingredient.

What are 5-HTP Capsules made from?

5-HTP Capsules are made from Griffonia Seeds.

Are samples of 5-HTP Capsules available?

Sorry, we do not provide samples of 5-HTP Capsules.

How are 5-HTP Capsules packaged?

5-HTP Capsules are packaged in single 120 capsule containers.

You can purchase 480 capsules for a further discount, but the product will be delivered in 4 x 120 Capsule containers.

Is the packaging for 5-HTP Capsules recyclable?

Yes! The capsule container and lid can be recycled as hard plastics in your local council pickup.

If you'd like more information, check this article which breaks down how all of Bulk's product packaging can be recycled.

Can I receive a discount by buying more than one bottle of 5-HTP Capsules at once?

Absolutely! Price breaks for 5-HTP Capsules begin when you purchase 4 bottles. Just add 4 bottles or more to your cart to see the savings.

Are 5-HTP Capsules Vegetarian/Vegan Friendly?

Yes they are! Previously Bulk Nutrients' capsulated products used gelatin based capsules, however in early 2019 we switched our range to use vegetable based capsules. This means our 5-HTP Capsules are now 100% vegetarian and vegan friendly.

5-HTP Capsules Nutrition Panel

Servings per package: 120Servings size: 1 capsule (99mg)
Average Quantity Per ServingAverage Quantity Per 100g
Energy (kj)6.06841
Protein (g)0.0912.8
Fats (g)00
(saturated) (g)00
Carbohydrates (g)0.1318.2
(sugars) (g)0.022.77
Polydextrose (g)0.5083.0
Sodium (mg)0.1824.8
5-Hydroxytryptophan (mg)9916,528

5-HTP Capsules Reviews