CI 77510
CI 77510, also known as Prussian blue or Pigment Blue 27, is an inorganic blue pigment. In cosmetics it may appear under the name Ferric Ammonium Ferrocyanide; it is a substance made from iron compounds and ferrocyanide groups, prepared to give a formula a blue colour.
CI 77510: what it is
CI 77510, also known as Prussian blue or Pigment Blue 27, is an inorganic blue pigment. In cosmetics it may appear under the name Ferric Ammonium Ferrocyanide; it is a substance made from iron compounds and ferrocyanide groups, prepared to give a formula a blue colour.
The name is also connected with Ferric Ferrocyanide, another name for Prussian blue. It is not a plant extract or a colour obtained from flowers or fruit: it is a synthetic mineral pigment, only slightly soluble in water, used as colour particles dispersed through a product. The visible shade depends on the amount used and on the base carrying the pigment.
CI 77510: what it does in cosmetics
CI 77510 is used to add blue colour to cosmetics. In makeup and other coloured formulas, the pigment can build or adjust the product's visible shade; its purpose is the appearance of colour, not moisturising, treating or protecting the skin.
In the European Union, CI 77510 is listed as an allowed colourant under Ferric Ammonium Ferrocyanide, provided it is free from cyanide ions. Prussian blue is also mentioned in oral medical contexts, but that does not establish a topical cosmetic benefit for the pigment in a beauty product.
CI 77510: conditions and care
In the European Union, CI 77510 is allowed as a colourant only when it is free from cyanide ions. This is a composition condition for the pigment, not an indication of a skin benefit.
Restrictions and conditions of use
Products containing this ingredient
See which products include it and the name used in each composition.
