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Cheapest Niacin (as Niacinamide) on iHerb

Ranked by real cost per 100 mg of Niacin (as Niacinamide) — cheapest value first.

Prices updated Jul 25, 2026 · 25 products · Prices in USD

The priciest option here costs about 35.5× more per 100 mg of Niacin (as Niacinamide) than the best-value pick Vitamatic. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 100 mg
1
Vitamatic, Niacin, 500 mg, 240 Tablets
Vitamatic, Niacin, 500 mg, 240 Tablets
Vitamatic
500 mg24014.990.013View on iHerb →
2
Nature's Craft, Nicotinamide, 500 mg , 180 Capsules
Nature's Craft, Nicotinamide, 500 mg , 180 Capsules
Nature's Craft
500 mg18025.990.029View on iHerb →
3
Nature's Craft, Nicotinamide , 500 mg , 60 Capsules
Nature's Craft, Nicotinamide , 500 mg , 60 Capsules
Nature's Craft
500 mg609.990.033View on iHerb →
4
Super Nutrition, Simply One®, Men's 50+ Multivitamin with Super Adaptogens, B12, Greens, Spices & Antioxidants, 90 Tablets
Super Nutrition, Simply One®, Men's 50+ Multivitamin with Super Adaptogens, B12, Greens, Spices & Antioxidants, 90 Tablets
Super Nutrition
48 mg902.000.046View on iHerb →
5
California Gold Nutrition, High Potency Vitamin B Complex with Methyl Folate & Methyl B12, 90 Veggie Capsules
California Gold Nutrition, High Potency Vitamin B Complex with Methyl Folate & Methyl B12, 90 Veggie Capsules
California Gold Nutrition
140 mg9020.230.161View on iHerb →
6
Dr. Mercola, Niacinamide Vitamin B3 , 50 mg , 270 Tablets
Dr. Mercola, Niacinamide Vitamin B3 , 50 mg , 270 Tablets
Dr. Mercola
50 mg27023.990.178View on iHerb →
7
California Gold Nutrition, High Potency Vitamin B Complex with Methyl Folate & Methyl B12, 30 Veggie Capsules
California Gold Nutrition, High Potency Vitamin B Complex with Methyl Folate & Methyl B12, 30 Veggie Capsules
California Gold Nutrition
140 mg308.980.214View on iHerb →
8
Nutra BioGenesis, ArthroGenx, 150 Capsules
Nutra BioGenesis, ArthroGenx, 150 Capsules
Nutra BioGenesis
600 mg3044.490.247View on iHerb →
9
Vitamatic, Red Yeast Rice + CoQ10, 120 Capsules
Vitamatic, Red Yeast Rice + CoQ10, 120 Capsules
Vitamatic
100 mg6014.990.250View on iHerb →
10
Rejuvicare, Hair, Skin & Nails, 60 Caplets
Rejuvicare, Hair, Skin & Nails, 60 Caplets
Rejuvicare
50 mg607.870.262View on iHerb →
11
Source Naturals, Hi-Stress B&C With Herbs, 120 Tablets
Source Naturals, Hi-Stress B&C With Herbs, 120 Tablets
Source Naturals
163 mg3014.080.288View on iHerb →
12
Super Nutrition, SimplyOne®, Think Clearly with L-Theanine, L-Phenylalanine, and L-Glutamine, 30 Tablets
Super Nutrition, SimplyOne®, Think Clearly with L-Theanine, L-Phenylalanine, and L-Glutamine, 30 Tablets
Super Nutrition
70 mg306.550.312View on iHerb →
13
Crystal Star, NAD+, 60 Vegetarian Sustained-Release Tablets
Crystal Star, NAD+, 60 Vegetarian Sustained-Release Tablets
Crystal Star
320 mg3029.960.312View on iHerb →
14
Micro Ingredients, Bioactive B Complex, 120 Vegetarian Capsules
Micro Ingredients, Bioactive B Complex, 120 Vegetarian Capsules
Micro Ingredients
50 mg12019.990.333View on iHerb →
15
EVLution Nutrition, VitaMode®, High Performance Multivitamin, 120 Tablets
EVLution Nutrition, VitaMode®, High Performance Multivitamin, 120 Tablets
EVLution Nutrition
75 mg6015.190.338View on iHerb →
16
Solaray, Timed Release Vitamin B-Stress PM™, 120 Capsules
Solaray, Timed Release Vitamin B-Stress PM™, 120 Capsules
Solaray
100 mg6020.790.347View on iHerb →
17
EVLution Nutrition, VitaMode®, High Performance Multivitamin, 60 Tablets
EVLution Nutrition, VitaMode®, High Performance Multivitamin, 60 Tablets
EVLution Nutrition
75 mg307.990.355View on iHerb →
18
NOW Foods, Liquid B-12, 8 fl oz (237 ml)
NOW Foods, Liquid B-12, 8 fl oz (237 ml)
NOW Foods
20 mg23717.140.362View on iHerb →
19
Nutra BioGenesis, BioInflaMax Capsules, 150 Capsules
Nutra BioGenesis, BioInflaMax Capsules, 150 Capsules
Nutra BioGenesis
350 mg3041.660.397View on iHerb →
20
Super Nutrition, SimplyOne®, 50+ Women Multivitamin + Super Complexes with Vitamin A, Vitamin C, Minerals, and Botanicals, Iron Free, 90 Tablets
Super Nutrition, SimplyOne®, 50+ Women Multivitamin + Super Complexes with Vitamin A, Vitamin C, Minerals, and Botanicals, Iron Free, 90 Tablets
Super Nutrition
48 mg9017.550.406View on iHerb →
21
Super Nutrition, Simply One, Men's 50+ Multivitamin with Super Adaptogens, Greens, Spices, & Antioxidant, Iron Free, 90 Tablets
Super Nutrition, Simply One, Men's 50+ Multivitamin with Super Adaptogens, Greens, Spices, & Antioxidant, Iron Free, 90 Tablets
Super Nutrition
48 mg9017.600.407View on iHerb →
22
Solaray, Multi-Vita Mega-Mineral, Multivitamin, 120 Capsules
Solaray, Multi-Vita Mega-Mineral, Multivitamin, 120 Capsules
Solaray
200 mg3024.490.408View on iHerb →
23
Pure Encapsulations, B-Complex Plus, 60 Capsules
Pure Encapsulations, B-Complex Plus, 60 Capsules
Pure Encapsulations
108 mg6026.500.409View on iHerb →
24
Super Nutrition, Simply One®, 50+ Women Multivitamin with Super Complexes, 90 Tablets
Super Nutrition, Simply One®, 50+ Women Multivitamin with Super Complexes, 90 Tablets
Super Nutrition
48 mg9017.690.410View on iHerb →
25
Deva, Vegan Multivitamin & Mineral Supplement, Iron-Free, 90 Tablets
Deva, Vegan Multivitamin & Mineral Supplement, Iron-Free, 90 Tablets
Deva
20 mg907.990.444View on iHerb →

How we rank Niacin (as Niacinamide)

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.