Vitamin B3 (Niacin)

Also known as: Niacinamide, Vitamin B-3

Niacin, or vitamin B-3, is involved in the production of many stress-related hormones and may promote heart health and healthy circulation. Like the other B-complex vitamins, niacin is essential for supporting healthy energy levels. Foods that contain tryptophan may also be a source of niacin because the body converts the amino acid tryptophan into niacin.

Source Naturals: Coenzymated B-3 (25 mg 60 Tabs)

Source Naturals

Coenzymated B-3

25 mg 60 Tabs

$25.50

$17.89

NOW Foods: Niacinamide (500 mg 100 Caps)

NOW Foods

Niacinamide

500 mg 100 Caps

$8.99

$4.75

Nature's Way: Niacinamide (500 mg 100 Caps)

Nature's Way

Niacinamide

500 mg 100 Caps

$7.99

$5.99

Swanson Health Products: Niacinamide (250 mg 250 Caps)

Swanson Health Products

Niacinamide

250 mg 250 Caps

$11.99

$5.99

Swanson Health Products: Niacinamide (500 mg 250 Caps)

Swanson Health Products

Niacinamide

500 mg 250 Caps

$14.99

$5.84

Vital Nutrients: Niacinamide (750 mg 120 Veg Caps)

Vital Nutrients

Niacinamide

750 mg 120 Veg Caps

$23.10

Rugby: Niacinamide (500 mg 100 Tabs)

Rugby

Niacinamide

500 mg 100 Tabs

$7.29

$4.57

21st Century: Prolonged Release Niacin (250 mg 110 Tabs)

21st Century

Prolonged Release Niacin

250 mg 110 Tabs

$3.53

$3.00

21st Century: Prolonged Release Niacin (500 mg 100 Tabs)

21st Century

Prolonged Release Niacin

500 mg 100 Tabs

$6.99

$6.44

21st Century: Flush Free Niacin Inositol Hexanicotinate (500 mg 110 Caps)

21st Century

Flush Free Niacin Inositol Hexanicotinate

500 mg 110 Caps

$11.99

$8.39

Country Life: Niacin (500 mg 90 Tabs)

Country Life

Niacin

500 mg 90 Tabs

$12.79

$9.59

Nature's Blend: Niacin (100 mg 100 Tabs)

Nature's Blend

Niacin

100 mg 100 Tabs

$4.19

$3.50

NOW Foods: Niacin (500 mg 100 Tabs)

NOW Foods

Niacin

500 mg 100 Tabs

$9.99

$5.99

Nature's Way: Niacin (100 mg 100 Caps)

Nature's Way

Niacin

100 mg 100 Caps

$5.99

$3.25

Solgar: Niacin (500 mg 100 Veg Caps)

Solgar

Niacin

500 mg 100 Veg Caps

$14.99

$11.34

Solaray: Niacin (500 mg 100 Caps)

Solaray

Niacin

500 mg 100 Caps

$10.09

$7.16

Swanson Health Products: Niacin (100 mg 250 Tabs)

Swanson Health Products

Niacin

100 mg 250 Tabs

$7.99

$2.59

Swanson Health Products: Niacin (500 mg 250 Caps)

Swanson Health Products

Niacin

500 mg 250 Caps

$17.49

$6.49

Vital Nutrients: Niacin (500 mg 90 Tabs)

Vital Nutrients

Niacin

500 mg 90 Tabs

$19.20

Rugby: Niacin (500 mg 1000 Tabs)

Rugby

Niacin

500 mg 1000 Tabs

$27.50

$26.73

Enzymatic Therapy: HexaNiacin (590 mg 60 Veg Caps)

Enzymatic Therapy

HexaNiacin

590 mg 60 Veg Caps

$23.99

$17.99

Doctor's Best: Sustained-Release Niacin with niaXtend (500 mg 120 Tabs)

Doctor's Best

Sustained-Release Niacin with niaXtend

500 mg 120 Tabs

$24.99

$14.69

Life Extension: No Flush Niacin (800 mg 100 Caps)

Life Extension

No Flush Niacin

800 mg 100 Caps

$19.00

$14.96

Natural Factors: No Flush Niacin (500 mg 90 Caps)

Natural Factors

No Flush Niacin

500 mg 90 Caps

$19.95

$14.67

Thompson: No Flush Niacin (500 mg 30 Veg Caps)

Thompson

No Flush Niacin

500 mg 30 Veg Caps

$5.99

$5.12

Life Extension: Vitamin B3 Niacin (500 mg 100 Caps)

Life Extension

Vitamin B3 Niacin

500 mg 100 Caps

$7.65

$6.41

Nature's Blend: Niacin 500 mg (500 mg 100 Tabs)

Nature's Blend

Niacin 500 mg

500 mg 100 Tabs

$6.79

$5.67

Nature's Blend: Niacin 50 mg (50 mg 100 Tabs)

Nature's Blend

Niacin 50 mg

50 mg 100 Tabs

$3.39

$2.75

Nature's Blend: Niacin 250 mg (250 mg 100 Tabs)

Nature's Blend

Niacin 250 mg

250 mg 100 Tabs

$5.99

$5.03

Nature's Blend: Niacin Timed Release 500 mg (500 mg 100 Tabs)

Nature's Blend

Niacin Timed Release 500 mg

500 mg 100 Tabs

$7.19

$5.94

Nature's Blend: Timed Release Niacin (250 mg 100 Tabs)

Nature's Blend

Timed Release Niacin

250 mg 100 Tabs

$6.39

$5.30

Nature's Blend: Timed Release Niacin (500 mg 300 Tabs)

Nature's Blend

Timed Release Niacin

500 mg 300 Tabs

$17.89

$15.99

Nature Made: Flush Free Niacin (500 mg 60 Sgels)

Nature Made

Flush Free Niacin

500 mg 60 Sgels

$14.99

$10.97

Swanson Health Products: Flush Free Niacin (500 mg 240 Caps)

Swanson Health Products

Flush Free Niacin

500 mg 240 Caps

$25.49

$13.64

NutriCology Innovative Nutrition: No-flush Niacin (75 Veg Caps)

NutriCology Innovative Nutrition

No-flush Niacin

75 Veg Caps

$27.73

$20.80

NOW Foods: Double Strength Flush-Free Niacin (90 Veg Caps)

NOW Foods

Double Strength Flush-Free Niacin

90 Veg Caps

$21.99

$13.59

NOW Foods: Double Strength Flush-Free Niacin (500 mg 180 Veg Caps)

NOW Foods

Double Strength Flush-Free Niacin

500 mg 180 Veg Caps

$39.99

$24.79

NOW Foods: Flush-Free Niacin (90 Veg Caps)

NOW Foods

Flush-Free Niacin

90 Veg Caps

$11.99

$6.79

Source Naturals: No-Flush Niacin (500 mg 60 Tabs)

Source Naturals

No-Flush Niacin

500 mg 60 Tabs

$13.50

$9.49

Solgar: No-Flush Niacin (500 mg 100 Veg Caps)

Solgar

No-Flush Niacin

500 mg 100 Veg Caps

$24.49

$19.06

Source Naturals: Niacinamide B-3 (1,500 mg 100 Tabs)

Source Naturals

Niacinamide B-3

1,500 mg 100 Tabs

$16.98

$11.89

Source Naturals: Niacinamide B-3 (100 mg 250 Tabs)

Source Naturals

Niacinamide B-3

100 mg 250 Tabs

$14.50

$10.19

Source Naturals: Niacinamide B-3 (100 mg 100 Tabs)

Source Naturals

Niacinamide B-3

100 mg 100 Tabs

$6.25

$5.05

Source Naturals: Niacin Vitamin B-3 (100 mg 250 Tabs)

Source Naturals

Niacin Vitamin B-3

100 mg 250 Tabs

$14.50

$10.19

Swanson Health Products: Real Food Niacin (20 mg 100 Veg Caps)

Swanson Health Products

Real Food Niacin

20 mg 100 Veg Caps

$30.99

$12.60

Swanson Health Products: Niacin - Sustained Release (500 mg 90 Tabs)

Swanson Health Products

Niacin - Sustained Release

500 mg 90 Tabs

$13.49

$6.49

Swanson Health Products: Niacin Skin Cream (2 fl oz Cream)

Swanson Health Products

Niacin Skin Cream

2 fl oz Cream

$12.49

$5.39

Twinlab: Niacin Caps (1,000 mg 100 Caps)

Twinlab

Niacin Caps

1,000 mg 100 Caps

$17.37

$14.99

21st Century: Prolonged Release Niacinamide (500 mg 110 Tabs)

21st Century

Prolonged Release Niacinamide

500 mg 110 Tabs

$4.99

$4.39

Douglas Laboratories: Niatab 500 (100 Tabs)

Douglas Laboratories

Niatab 500

100 Tabs

$15.00

Pure Encapsulations: Niacitol (500 mg 60 Veg Caps)

Pure Encapsulations

Niacitol

500 mg 60 Veg Caps

$24.10

Bluebonnet Nutrition: Niacinamide (500 mg 60 Vcaps)

Bluebonnet Nutrition

Niacinamide

500 mg 60 Vcaps

$11.50

$9.66