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Vitamins
Niacinamide
A form of vitamin B3 used primarily in foods and cosmetics for skin barrier support and metabolic functions.
Mineral or nutrientUpdated Feb 14, 2026
Health score+2.0
-5Good5
Water guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Food and supplement guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Risks
Possible mild skin irritation or sensitization at high concentrations, none at typical use
Benefits
Supports skin barrier integrity, improves skin appearance, essential nutrient
References
Waters containing Niacinamide
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