Back to Ingredient Dictionary

SULFURIC ACID

Description

Sulfuric acid is a potent and highly corrosive inorganic compound with the chemical formula H2SO4. In skincare formulations, it is used in extremely dilute concentrations, typically less than 1%, due to its strong acidic properties. This ingredient functions primarily as a pH adjuster, helping to maintain the optimal acidity of products for stability and efficacy.

At controlled levels, sulfuric acid can assist in exfoliation by breaking down the bonds between dead skin cells, promoting cell turnover and potentially improving skin texture. It also aids in the penetration of other active ingredients by slightly disrupting the skin's barrier. However, its use requires precise formulation to avoid irritation or damage to the skin.

Sulfuric acid can be found in some chemical peels and acne treatments, where its keratolytic properties are utilized. It's important to note that professional application and neutralization are crucial when using higher concentrations. In over-the-counter products, the concentration is significantly lower and carefully balanced with other ingredients to ensure safety and effectiveness. Despite its benefits, sulfuric acid is not suitable for sensitive skin types and should be used with caution.