Douglas Laboratories Niacinamide 500 mg

Douglas Laboratories Niacinamide 500 mg

5 reviews
Sale price$14.20
Selection: 100 Capsules
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  • Douglas Labs Niacinamide provides 500 mg of niacinamide per capsule. 
  • The niacin coenzymes NAD and NADP have pervasive roles in energy-related and biosynthetic metabolic processes. At least 200 enzymes depend on these niacin cofactors.
  • The NAD-dependent enzymes are involved in mostly catabolic, oxidative reactions that release energy from carbohydrate, fat, and protein, whereas the NADP-dependent enzymes more commonly function in biosynthetic pathways of such compounds as fatty acids and steroid hormones. 
  • Independent of its functions as NAD or NADP, niacin is also involved in the regulation of normal blood lipoprotein and cholesterol levels.


Serving Size 1 capsule

Amount Per Serving.....%DV

Niacinamide......... 500 mg   2500%

Other Ingredients:

Gelatin (capsule), cellulose and vegetable stearate.

Suggested Use:

Adults take one capsule daily with meals or as directed by a healthcare professional.

Side Effects:

No adverse side effects have been reported.


Store in a cool, dry place, away from direct light. Keep out of reach of children.

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

Customer Reviews

Based on 5 reviews
Nina K.

It works!!

Ronald R.
Great product

Niacinamide at 500 mg is very difficult to purchase in this area. So I am very grateful to find a reliable supplier and will continue to do business with you.

David H.
Good Products

I can always depend on getting the best quality products and service from Supplement First.

Chester M.
Niacinamide 500 mg

My Dermotologist suggested that take Niacinamide and I am confident that Douglas Laborites is a good lab and Supplements First has treated me with good service and kindness !

Donna A.
Good product

I truly don’t know if it is working, but my dermatologist recommend I take it for my skin cancer. I feel as though this is a high quality product.

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