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Cheapest Niacin (B3) on iHerb

Ranked by real cost per 10 mg of Niacin (B3) — cheapest value first.

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

The priciest option here costs about 47.9× more per 10 mg of Niacin (B3) than the best-value pick Dr. Mercola. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 10 mg
1
Dr. Mercola, Niacin, Vitamin B3, 50 mg, 270 Tablets
Dr. Mercola, Niacin, Vitamin B3, 50 mg, 270 Tablets
Dr. Mercola
50 mg27021.990.016View on iHerb →
2
Olympian Labs, Vanadyl Sulfate, 20 mg, 250 Capsules
Olympian Labs, Vanadyl Sulfate, 20 mg, 250 Capsules
Olympian Labs
20 mg25030.730.062View on iHerb →
3
SteelFit, Steel Sweat™, Metabolic Catalyst + Energy, Strawberry Mango, 5.29 oz (150 g)
SteelFit, Steel Sweat™, Metabolic Catalyst + Energy, Strawberry Mango, 5.29 oz (150 g)
SteelFit
50 mg3030.340.202View on iHerb →
4
VMI Sports, KXR Original, Intense Energy Pre-Workout, Blue Shark Gummy, 9.3 oz (264 g)
VMI Sports, KXR Original, Intense Energy Pre-Workout, Blue Shark Gummy, 9.3 oz (264 g)
VMI Sports
35 mg3024.740.236View on iHerb →
5
EVLution Nutrition, Trans4orm®, Energized Weight Loss Support, 120 Capsules
EVLution Nutrition, Trans4orm®, Energized Weight Loss Support, 120 Capsules
EVLution Nutrition
15 mg6021.590.240View on iHerb →
6
SteelFit, Steel Sweat ™, Metabolic Catalyst + Energy, Green Apple, 5.29 oz (150 g)
SteelFit, Steel Sweat ™, Metabolic Catalyst + Energy, Green Apple, 5.29 oz (150 g)
SteelFit
50 mg3040.450.270View on iHerb →
7
ABE, Ultimate Pre-Workout, Bubble Gum Crush, 13.75 oz (390 g)
ABE, Ultimate Pre-Workout, Bubble Gum Crush, 13.75 oz (390 g)
ABE
40 mg3038.240.319View on iHerb →
8
ABE, Ultimate Pre-Workout, Baddy Berry, 13.75 oz (390 g)
ABE, Ultimate Pre-Workout, Baddy Berry, 13.75 oz (390 g)
ABE
40 mg3038.240.319View on iHerb →
9
ABE, Ultimate Pre-Workout, Red Hawaiian, 13.75 oz (390 g)
ABE, Ultimate Pre-Workout, Red Hawaiian, 13.75 oz (390 g)
ABE
40 mg3038.240.319View on iHerb →
10
ABE, Ultimate Pre-Workout, Candy Ice Blast, 13.75 oz (390 g)
ABE, Ultimate Pre-Workout, Candy Ice Blast, 13.75 oz (390 g)
ABE
40 mg3039.990.333View on iHerb →
11
ABE, Preworkout, Cherry Cola, 13.75 oz (390 g)
ABE, Preworkout, Cherry Cola, 13.75 oz (390 g)
ABE
40 mg3039.990.333View on iHerb →
12
ABE, Pre-Workout, Sour Apple, 13.75 oz (390 g)
ABE, Pre-Workout, Sour Apple, 13.75 oz (390 g)
ABE
40 mg3039.990.333View on iHerb →
13
ABE, Preworkout, Sour Gummy Bear, 13.75 oz (390 g)
ABE, Preworkout, Sour Gummy Bear, 13.75 oz (390 g)
ABE
40 mg3039.990.333View on iHerb →
14
ABE, Preworkout, Blue Raspberry, 13.75 oz (390 g)
ABE, Preworkout, Blue Raspberry, 13.75 oz (390 g)
ABE
40 mg3039.990.333View on iHerb →
15
ABE, Pre-Workout, Tropical Vibes, 13.75 oz (390 g)
ABE, Pre-Workout, Tropical Vibes, 13.75 oz (390 g)
ABE
40 mg3039.990.333View on iHerb →
16
Metabolic Nutrition, VitaGen, Lemonade, 8.47 oz (240 g)
Metabolic Nutrition, VitaGen, Lemonade, 8.47 oz (240 g)
Metabolic Nutrition
20 mg3029.990.500View on iHerb →
17
Metabolic Nutrition, VitaGen, Sweet Pink Grapefruit, 8.47 oz (240 g)
Metabolic Nutrition, VitaGen, Sweet Pink Grapefruit, 8.47 oz (240 g)
Metabolic Nutrition
20 mg3029.990.500View on iHerb →
18
Metabolic Nutrition, VitaGen, Apple Cider, 8.47 oz (240 g)
Metabolic Nutrition, VitaGen, Apple Cider, 8.47 oz (240 g)
Metabolic Nutrition
20 mg3029.990.500View on iHerb →
19
ABE, Non-Stim Pump Pre Workout, Blue Raspberry , 17.63 oz (500 g)
ABE, Non-Stim Pump Pre Workout, Blue Raspberry , 17.63 oz (500 g)
ABE
20 mg4039.990.500View on iHerb →
20
Conceive Plus, Women's Fertility Support, 60 Vegan Capsules
Conceive Plus, Women's Fertility Support, 60 Vegan Capsules
Conceive Plus
20 mg3034.990.583View on iHerb →
21
TransformHQ, Super Burner, Thermogenic Drink Mix, Pineapple Guava, 9.6 oz (270 g)
TransformHQ, Super Burner, Thermogenic Drink Mix, Pineapple Guava, 9.6 oz (270 g)
TransformHQ
15 mg3027.990.622View on iHerb →
22
TransformHQ, Super Burner, Thermogenic Drink Mix, Strawberry Orange, 10.6 oz (297 g)
TransformHQ, Super Burner, Thermogenic Drink Mix, Strawberry Orange, 10.6 oz (297 g)
TransformHQ
15 mg3027.990.622View on iHerb →
23
MuscleSport, Pre V2, Pre-Workout Powerhouse, Mango Madness, 17.64 oz (500 g)
MuscleSport, Pre V2, Pre-Workout Powerhouse, Mango Madness, 17.64 oz (500 g)
MuscleSport
25 mg2542.990.688View on iHerb →
24
MuscleSport, Pre V2, Pre-Workout Powerhouse, Candy Riot, 17.64 oz (500 g)
MuscleSport, Pre V2, Pre-Workout Powerhouse, Candy Riot, 17.64 oz (500 g)
MuscleSport
25 mg2542.990.688View on iHerb →
25
Vitauthority, Revive, Comprehensive Anti-Aging Hydration Mix, Lemonade, 30 Sticks, 0.13 oz (3.9 g) Each
Vitauthority, Revive, Comprehensive Anti-Aging Hydration Mix, Lemonade, 30 Sticks, 0.13 oz (3.9 g) Each
Vitauthority
16 mg3037.480.781View on iHerb →

How we rank Niacin (B3)

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.