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Category

Vitamins

Single vitamins, their common forms, label units and typical amounts.

Vitamins on SuppScout

VITAMIN

Vitamin D

A fat-soluble vitamin sold as D2 or D3. Labels list micrograms (mcg), often with IU in parentheses.

Studied for: Correcting low vitamin D status · Bone health (with calcium)
VITAMIN

Vitamin C

Vitamin C (ascorbic acid) is a water-soluble vitamin needed to make collagen and certain neurotransmitters, and it acts

Studied for: Common cold
VITAMIN

Vitamin B12

Vitamin B12 is needed for red blood cell formation, nerve function and DNA synthesis. It is found naturally almost only

Studied for: Preventing or correcting deficiency
VITAMIN

Folate

Folate is a B vitamin needed to make DNA and for cell division. Supplements contain either folic acid or 5-methyltetrahy

Studied for: Neural tube defects
VITAMIN

Biotin

Biotin is a B vitamin involved in metabolizing fats, carbohydrates and protein. It is widely marketed for hair and nails

Research in progress

Comparisons

VITAMIN D

D2 vs D3

Sources, vegan status and what research says about raising levels.

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Products

Primary ingredient
Vitamin D3 (Cholecalciferol)
Per serving
25 mcg (1,000 IU) vitamin D
Servings
30
Format
Gummies
Price
Not available
Per serving cost
—
Not verified
View details

Plainlabel Vitamin D2 1,000 IU

Plainlabel Nutrition · Demo
Primary ingredient
Vitamin D2 (Ergocalciferol)
Per serving
25 mcg (1,000 IU) vitamin D
Servings
120
Format
Tablets
Price
Unavailable
Per serving cost
$0.08
Not verified
View details

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Guides

VITAMIN D

How to Compare Vitamin D Supplements

Units, D2 vs D3, source, totals across products and cost per 1,000 IU.
LABEL BASICS

Supplement Serving Size Explained

Why “per serving” can mean one capsule or five, and how that changes comparisons.