Ferric ammonium ferrocyanide (CI 77510)
AKA “FERRIC AMMONIUM CITRATE, Ammonium ferric citrate, Iron ammonium citrate, Ferriseltz, Ammonium iron(III) citrate”
Ingredient
Ingredient Facts
Ferric ammonium ferrocyanide (CI 77510)
AKA: FERRIC AMMONIUM CITRATE, Ammonium ferric citrate, Iron ammonium citrate, Ferriseltz, Ammonium iron(III) citrate
Ingredient · Cosmetic Colorant · EWG: 4
Synthetic
Colorant
Not Clean
Ferric ammonium ferrocyanide (CI 77510) is a cosmetic ingredient.
Formula
C6H11FeNO7+3
Mol. Weight
265.00
CAS #
1185-57-5
Form
Powder
See origin →
Functions
Cosmetic Colorant
Gives the product its color. Purely aesthetic — makes the formula look good in the jar but does nothing for your skin.
Hair Dyeing
Anti-Aging Benefits
Antioxidant Protection
Locks In Moisture
Colors Hair
Traditional Use
Prussian blue pigment synthesized in 1706. Used historically in art and textiles; approved for cosmetic use in the 20th century as a colorant and anti-reflective agent in cosmetics and pharmaceuticals.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR