CI 77510 / FERRIC AMMONIUM FERROCYANIDE ●
TL;DR. This ingredient is an insoluble inorganic colorant used to give cosmetics a deep blue shade. It is most common in eye makeup, nail products, and other color cosmetics where strong tinting strength is needed.
What does CI 77510 / FERRIC AMMONIUM FERROCYANIDE do in a cosmetic formula?
This ingredient is an insoluble inorganic colorant used to give cosmetics a deep blue shade. It is most common in eye makeup, nail products, and other color cosmetics where strong tinting strength is needed.
Is CI 77510 / FERRIC AMMONIUM FERROCYANIDE clean?
From a clean-beauty perspective, it is generally low-irritation and poorly absorbed because it is an insoluble pigment, but it carries more scrutiny than simple iron oxides because of regulatory use limits and purity specifications. Clean standards usually focus on whether it is approved for the product area, especially around eyes versus lips, and whether heavy-metal impurities meet strict limits.
Is CI 77510 / FERRIC AMMONIUM FERROCYANIDE sustainable?
This material is synthetically made from mineral-derived inputs rather than renewable feedstocks. It is not biodegradable in the usual organic-material sense, but it is highly insoluble and relatively inert in finished-product use.
Is CI 77510 / FERRIC AMMONIUM FERROCYANIDE COSMOS-approved?
It has partial alignment with COSMOS-style natural standards because certain inorganic pigments may be permitted when they meet purity and use requirements, but it is not a renewable or readily biodegradable material. From a Green Chemistry perspective, its strengths are low use levels and stability, while its weaknesses are synthetic mineral processing and limited end-of-life transformation.
How does CI 77510 / FERRIC AMMONIUM FERROCYANIDE work chemically?
The molecule is a coordination-network pigment built from iron ions bridged by tightly bound cyanide ligands, which gives high color strength and very low solubility in water and oils. It is typically used at low color-adjusting levels up to several percent in color cosmetics, and it is best kept out of strongly alkaline systems where the lattice can lose stability.
Last updated 2026-05-13