Ingredient dictionary
Sodium Fluoride
Sodium fluoride is a simple inorganic salt that releases fluoride ions in water, and its main job is supplying fluoride to oral care formulas. Checked against our library November 6, 2026.
The catch: none for most people; check the full product list if your skin reacts easily.
What Sodium Fluoride does
- Supplies fluoride to oral care formulas
- Dissolves easily in water-based products
- Used in toothpaste and mouthwash
Sodium fluoride is made in industry by combining fluorine-containing materials with sodium compounds. It appears as a white, crystalline powder that dissolves easily in water. The fluoride part is what does the work in these formulas.
Formulators mainly use it in toothpaste and mouthwash, where fluoride has long been a common ingredient in tooth care. Because it dissolves well, it blends smoothly into water-based gels and pastes. It is usually one part of a larger formula, not the whole product. You will rarely see it in moisturizers, serums or makeup.
Good for
Best suited to oral care products, such as toothpaste, where fluoride is the intended ingredient.
Be careful if
Nothing in particular for most skin types.
Frequently asked questions
Is sodium fluoride safe in skincare?
It is not a common skincare ingredient, so you are unlikely to find it in creams or serums. In toothpaste and mouthwash, use it as the label directs and do not swallow it.
Is sodium fluoride the same as fluoride?
Sodium fluoride is one common fluoride salt. The fluoride ion is the active part, and other fluoride salts are also used in oral care. When you see either name on a label, the product is using fluoride for its oral care role.