Niacin (Vitamin B3) Pure Powder

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What is Niacin?

Niacin, also known as Vitamin B3, is a water-soluble vitamin created by the body that plays an important role in many bodily functions. 


Niacin helps support the cardiovascular system and the heart. It contributes to healthy metabolic function, supports the pancreas, and works to support brain & nerve function. Niacin also contributes to healthy skin.

  • Heart healthy
  • Promotes cardiovascular health
  • Supports the brain & nerve function
  • Works to support healthy skin
  • Helps maintain healthy metabolic function
  • Supports the pancreas
  • Contributes to overall health & wellness

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. 

Supplement Facts
Serving size: 500 milligrams
Serving per container: *
Amount Per Serving % Daily Value**
Vitamin B3 (as Niacin) ...500mg 2500%
* Daily Value not established.
** Based on 2,000 calorie diet


Sugar, soy, dairy, yeast, gluten, corn and additives.

As a dietary supplement, take 100mg to 500mg daily with meals, or as directed by physician.

Serving Size & Timing

Niacin is recommended to be taken in serving sizes between 100mg and 500mg to be consumed once daily preferably with a meal (since it increases the production of HCL which aids digestion further) depending on intended effect. Niacin can be dangerous in larger servings so it is best to avoid servings larger than a single gram until consultation with a physician in possible. The FDA recommends that Niacin be taken in servings not to exceed 20mg. Therefore a serving of 100mg will be about 500% of the daily value of Niacin, and a serving of 500mg will be 2500% of the daily value.

Niacin Side Effects

Always consult a physician before taking any dietary supplement. Side effects may range from conditions such as redness and rash to other minor conditions like headaches. If taking drugs to prevent seizure such as primidone or carbamazepine, it is best to avoid this supplement. Taking amounts larger than the recommended dose can have serious effects that can sometimes be fatal including stomach ulcers and liver damage. Discontinue use of any of these side effects begin to develop and lower daily intake if any of the more minor side effects start to increase in veracity. It is always best to talk to a doctor before taking a supplement such as this.

Niacin Bioavailability

This supplement dissolves quickly and easily in water and may be mixed with water or juice and consumed. The taste will be slightly sour with an even more slight bitterness as an aftertaste. This product should be stored in an area that is free from light, heat, and moisture in order to preserve potency.


There is no guarantee of specific results and results can vary.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

California residents: Click Here for Proposition 65 warning.

Customer Reviews

4.8 Based on 620 Reviews
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I recommend this product

Consistently Awesome!

Because I wont take any Rx toxins for anything, but rather chose suppliments as my only alternative, the money I save buying from Bulksupplements is phenomenal! And then there is the awesome customer service on top of that! The purity and consistency of everything I have ever purchased from Bulksupplements still gives me the warm and fuzzies when I open up my delivery. I really appreciate this great company!

Laura L.

Great Value!!

Best value on Amazon, or any other website for that matter. I talk Niacin daily for anxiety, and it makes a huge difference. I started out low and slowly bumped it up till I found a good daily dose. Tablets or capsules can be easier for getting an exact amount, but this powder is a way better bang for your buck. If you're okay with weighing, or measuring out your dose, this will save you a ton of money over the alternatives.


Good supplements, inexpensive, and easier to swollow!

Really like the products by bulk supplements. The powdered supplements are so much easier to take.


Powder dissolves completely

Have been high dosing on niacin in capsules form for last 6 months. As they are way too many pills to swallow so even though I bought in capsules, I usually open up the capsule and mix it in water. Have tried all brands and none dissolve well. They always left behind huge sediment at the bottom of the glass. Finally decided to go for Bulk Supplement powder and this powder totally dissolves in water, leaving no sediment.


Great value for the real deal

There's no flavor, I put the powder in my coffee. I like the plain packaging, and I was flabbergasted how much comes in the packet when I realized how tiny the daily dose is. I'll never use this whole packet even if I live another 20 years! I did my best to math the instructions, and used half of a 1/8 tsp. Even with that tiny amount, I experienced flushing within 15 minutes that lasted about an hour. Although it was uncomfortable (it felt like a tight sunburn), I was glad to know I've got a good vitamin product. This is definitely niacin. I'm looking forward to reaping the health benefits!

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