Ingredient dictionary

Sodium Levulinate

Sodium Levulinate is the sodium salt of levulinic acid, a plant-derived ingredient. It helps formulas resist microbes and helps skin stay hydrated. It is on the label of 9 products in our library. Checked against our library November 6, 2026.

What Sodium Levulinate does

Helps slow microbial growth in formulas
Acts as a humectant for hydration
Supports other preservatives in a formula

Sodium Levulinate is made from levulinic acid, which chemists produce by breaking down plant sugars or cellulose with acid. Neutralizing that acid with a sodium base gives the salt, which dissolves easily in water. It is a simple, well-understood molecule that has been used in personal care for years.

Formulators use it mainly as a preservative. It helps slow the growth of bacteria and molds, so a product stays fresh longer. It is also a humectant, meaning it draws water toward the skin and helps the surface feel softer. In most formulas it blends in easily and is often paired with other preservatives for broader protection.

Good for

Suits people who want a mild, water-soluble ingredient that helps formulas stay fresh and skin stay hydrated.

Frequently asked questions

Is Sodium Levulinate safe for skin?

Sodium Levulinate is generally well tolerated and is used in many skincare and makeup formulas. As with any ingredient, a small number of people may react to it, so patch testing a new product is a sensible habit. If irritation occurs, stop using the product.

Is Sodium Levulinate a natural ingredient?

It is a salt made from levulinic acid, which comes from plant sugars or cellulose through an industrial process. So it is plant-derived in origin, but it is not a raw plant extract.