Snapshot
- Overview
- An iron-based pigment that gives cosmetics a deep blue color.
- Category
- Color
- Type
- Pigment
Ferric Ferrocyanide (CI 77510)
Ferric ferrocyanide (CI 77510), also known as Prussian blue, is an inorganic pigment made of iron salts that produces a deep blue color. It's used in cosmetic formulations to add color and create specific shades in decorative cosmetics.
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Our take
Is Ferric Ferrocyanide (CI 77510) a Good Ingredient?
It earns Good marks for being an inert, chemically stable inorganic pigment: the color stays consistent, irritation is unlikely, and it holds up well across formats. What keeps it from a higher mark is that it's purely a color additive with no skin-conditioning role of its own.
What it does
Skin Benefits
Delivers a vivid, high-impact blue for bold looks. It lays down evenly and holds crisp lines without feeling heavy.
Where you'll find it
Uses in Skincare & Cosmetics
Used in nail polish, face paints, and water-activated cake formulas to create bold blue effects.
Before you use it
Safety
Low irritation potential for most users. The pigment is insoluble and doesn't release free cyanide under normal cosmetic conditions. It's commonly permitted in color cosmetics, including many eye-area products, though it should be avoided on compromised skin.
Products with Ferric Ferrocyanide (CI 77510)
