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Ferric Ferrocyanide

Description

Ferric Ferrocyanide, also known as Prussian Blue, is a synthetic pigment widely used in cosmetics and skincare products. This inorganic compound has the chemical formula Fe4[Fe(CN)6]3 and is characterized by its deep blue color. In skincare formulations, Ferric Ferrocyanide primarily functions as a colorant, providing a range of blue hues to various products.

The ingredient is FDA-approved for use in cosmetics and is considered safe when used as directed. It's particularly valued for its stability and resistance to light, heat, and pH changes, making it a reliable choice for long-lasting color in makeup and skincare items. Ferric Ferrocyanide is insoluble in water and most organic solvents, which contributes to its color-fast properties.

While primarily used for its coloring abilities, some studies suggest that Ferric Ferrocyanide may have additional benefits. It has been investigated for its potential to absorb certain heavy metals, though this property is more relevant in medical applications than in typical skincare use. In cosmetic formulations, it's often found in eye shadows, eyeliners, and other color cosmetics. The concentration used depends on the desired intensity of the blue color in the final product.