Ferric ammonium ferrocyanide (CI 77510)

Ferric ammonium ferrocyanide (CI 77510) 1
Ferric ammonium ferrocyanide (CI 77510) 2
Ferric ammonium ferrocyanide (CI 77510) 3
Ferric ammonium ferrocyanide (CI 77510) 4
Ferric ammonium ferrocyanide (CI 77510) 5
Ferric ammonium ferrocyanide (CI 77510) 6
Ferric ammonium ferrocyanide (CI 77510) 7
Ferric ammonium ferrocyanide (CI 77510) 8
Ferric ammonium ferrocyanide (CI 77510) 9
Ferric ammonium ferrocyanide (CI 77510) 10
AKA: FERRIC AMMONIUM CITRATE, Ammonium ferric citrate, Iron ammonium citrate, Ferriseltz, Ammonium iron(III) citrate
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
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.
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR