Sodium Citrate
Sodium Citrate, chemically known as trisodium citrate, is the sodium salt of citric acid. It is a natural acid found in citrus fruits and is produced commercially by neutralizing citric acid with sodium hydroxide.
Usage in Cosmetics:
- In cosmetics and personal care products, Sodium Citrate primarily functions as a pH adjuster. It helps stabilize the pH of a product, ensuring it remains within a range agreeable to the skin.
- It is also used as a buffering agent, helping to maintain the stability and efficacy of active ingredients in a product.
- Additionally, Sodium Citrate can act as a chelating agent, binding with metal ions in a formula, which can improve the sensory feel of the product and prevent the degradation of active ingredients.
Other Names:
Trisodium Citrate
Citric Acid, Trisodium Salt
Sodium Citrate Dihydrate (when in hydrated form)
Skin Sensitivities and Risks:
Sodium Citrate is generally considered safe and non-irritating for most skin types, including sensitive skin.
However, as with any ingredient, it can cause reactions in individuals with specific allergies or sensitivities. It's always recommended to patch-test new products.
It is known for its low potential to sensitize or irritate the skin, making it a suitable ingredient for products aimed at sensitive skin consumers.
Additional Notes:
It is often appreciated for its ability to enhance the penetration of other ingredients into the skin, which can be beneficial in formulations designed for specific skin concerns.
Being a salt derived from a naturally occurring acid, it aligns well with formulations aimed at natural or clean beauty markets.
Sodium Citrate is widely used and well-regarded for its safety and efficacy, but it is always crucial to consider the overall formulation of a product, as interactions between ingredients can influence the final product's suitability for sensitive skin.
