Article last updated: October 15, 2024
Ferric Ammonium Citrate, also known as 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, Ammonium iron (3+) salt, is a compound that combines iron, ammonium, and citric acid. This ingredient is primarily sourced from the reaction of ferric hydroxide with citric acid and ammonium hydroxide. In simpler terms, it’s a blend of iron and citric acid, stabilized with ammonium, making it a versatile component in various applications, including cosmetics.
Historically, Ferric Ammonium Citrate has been used in a variety of fields, from medicine to photography. Its journey into the world of cosmetics, particularly in hair dyeing, is relatively recent. The compound’s ability to bind with other substances and its stability make it an excellent choice for hair dye formulations. It provides a reliable source of iron, which can interact with other dye components to produce a range of colors.
The production of Ferric Ammonium Citrate involves a straightforward chemical process. Ferric hydroxide is first reacted with citric acid to form ferric citrate. This intermediate product is then treated with ammonium hydroxide, resulting in the formation of Ferric Ammonium Citrate. The final product is usually a green or reddish-brown powder, depending on the specific formulation and the ratio of its components. This process ensures that the compound is stable and effective for use in various cosmetic products, particularly those aimed at hair dyeing.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Ferric Ammonium Citrate:
Ferric Ammonium Citrate is primarily used in cosmetics for its hair dyeing properties. This ingredient acts as a colorant, helping to impart a desired hue to the hair. When included in hair dye formulations, it reacts with other compounds to produce a range of colors, from subtle shades to more vibrant tones. This makes it a versatile component in both permanent and semi-permanent hair dyes.
By using Ferric Ammonium Citrate, manufacturers can create hair dyes that offer consistent and long-lasting color. This is particularly beneficial for individuals looking to cover gray hair, enhance their natural hair color, or experiment with new looks. The ingredient’s ability to bind well with hair fibers ensures that the color remains vibrant and does not wash out easily, providing a durable and reliable dyeing solution.
Note: the listed benefits above are exclusively based on the officially recognized and defined functions of the ingredient, as documented by the International Nomenclature of Cosmetic Ingredients (INCI).
Ferric Ammonium Citrate is generally considered safe for use in cosmetic products, particularly in hair dyeing applications. However, as with any cosmetic ingredient, there are potential side effects and considerations to keep in mind.
Regarding individuals who are pregnant or breastfeeding, there is a lack of specific data and research on the topical usage of Ferric Ammonium Citrate during pregnancy and breastfeeding. Therefore, it is advisable for these individuals to consult a healthcare professional for further advice before using products containing this ingredient.
Side effects and adverse reactions from Ferric Ammonium Citrate are generally uncommon. However, it is recommended to perform a patch test before widespread usage to ensure there is no adverse reaction.
Ferric Ammonium Citrate has a comedogenic rating of 1, which means it is considered to be minimally comedogenic. This is good news for individuals who are prone to acne, blemishes, or breakouts, as it is unlikely to clog pores or exacerbate these conditions.
