Article last updated: October 15, 2024
Calcium Citrate, also known by its chemical name 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, calcium salt (2:3), is a compound that finds its way into various cosmetic products primarily for its buffering capabilities. This ingredient is derived from citric acid, which is naturally found in citrus fruits like lemons and oranges. When citric acid is combined with calcium hydroxide, it forms Calcium Citrate.
Historically, Calcium Citrate has been used in the food and pharmaceutical industries for its calcium content and its ability to act as a preservative. Its transition into the cosmetic world came about as formulators recognized its potential to maintain the pH balance of products, ensuring they remain effective and safe for use over time.
The production of Calcium Citrate involves a relatively straightforward chemical reaction. Citric acid is first neutralized with calcium hydroxide, resulting in the formation of Calcium Citrate. This compound is then filtered, washed, and dried to obtain a pure, usable form. This process ensures that the Calcium Citrate used in cosmetics is of high quality and free from impurities.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Calcium Citrate:
Calcium Citrate is primarily used in cosmetics as a buffering agent. This means it helps maintain the pH balance of a product. Why is this important? Well, the pH level of a cosmetic product can significantly impact its effectiveness and how it interacts with your skin. A product that is too acidic or too alkaline can cause irritation or reduce the efficacy of the active ingredients. By keeping the pH level stable, Calcium Citrate ensures that the product remains gentle on your skin while still delivering its intended benefits.
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).
Calcium Citrate is generally considered safe for use in cosmetic products. It is non-toxic and non-irritating for most individuals, making it suitable for a wide range of skin types. However, as with any cosmetic ingredient, there are potential side effects to be aware of:
Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of Calcium 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 Calcium Citrate are relatively uncommon. However, as a precaution, it is recommended to perform a patch test before widespread usage to ensure that your skin does not react negatively to the ingredient.
Calcium Citrate has a comedogenic rating of 0, meaning it is considered non-comedogenic. This makes it a suitable ingredient for individuals who are prone to acne, blemishes, or breakouts, as it is unlikely to clog pores or exacerbate skin conditions.
