Copper Citrate: An In-Depth Look at Its Role in Cosmetics

What Is Copper Citrate?

Copper Citrate, also known by its chemical name 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, copper salt, is a compound that combines copper with citric acid. In the world of cosmetics, this ingredient is primarily recognized for its antimicrobial properties. The copper component is derived from the metal copper, while citric acid is a naturally occurring acid found in citrus fruits.

The use of copper in various applications dates back thousands of years, but its incorporation into cosmetic products is a more recent development. Historically, copper has been valued for its antimicrobial and healing properties, which is why it has found its way into modern skincare formulations. The idea is to leverage these properties to help maintain the integrity and cleanliness of cosmetic products.

Copper Citrate is typically produced through a chemical reaction that involves the neutralization of citric acid with a copper source, such as copper carbonate or copper hydroxide. This reaction results in the formation of a copper salt, which is then purified and processed for use in various applications, including cosmetics. The resulting compound is a fine, blue-green powder that can be easily incorporated into creams, lotions, and other skincare products.

The Benefits/Uses of Copper Citrate

In this section, we will delve into the officially recognized cosmetic benefits and uses of Copper Citrate:

Antimicrobial Properties

Copper Citrate is primarily known for its antimicrobial properties. This means it helps to inhibit the growth of microorganisms such as bacteria, fungi, and viruses on the skin. In practical terms, this can be particularly beneficial in skincare products aimed at reducing acne, as it helps to keep the skin clean and free from the bacteria that can cause breakouts. Additionally, its antimicrobial action can help to extend the shelf life of cosmetic products by preventing microbial contamination.

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).

Potential Side Effects & Other Considerations

When considering the use of Copper Citrate in cosmetic products, it is important to be aware of its safety, suitability, and allergenic potential. While Copper Citrate is generally considered safe for topical application, some individuals may experience side effects. Potential side effects include:

• Skin irritation
• Redness
• Itching
• Allergic reactions

Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of Copper Citrate during pregnancy are lacking. Therefore, it is advisable for pregnant or breastfeeding women to consult a healthcare professional for further advice before using products containing this ingredient.

Adverse reactions to Copper Citrate are relatively uncommon, but they can occur. It is recommended to perform a patch test before widespread usage to ensure that the ingredient does not cause any adverse reactions on your skin.

In terms of comedogenicity, Copper Citrate is rated as a 1 on a scale of 0 (totally non-comedogenic) to 5 (highly comedogenic). This means it is unlikely to clog pores and is generally suitable for individuals prone to acne, blemishes, or breakouts.