Monosodium citrate is a sodium salt of citric acid commonly used as a buffering agent, used to adjust and stabilize product pH for skin-contact formulas, supporting formulation consistency, shelf reliability, and compatibility with a wide range of actives and excipients.
A buffering ingredient that keeps products gentle and pH-balanced.
Category
Sensitive Skin
Type
Buffer
Ingredient Ratings
Overall Rating
Great
Comedogenic Risk
None
Skin Benefits
Helps keep products feeling gentle by maintaining a skin-friendly acidity, reducing the chance of sting from active formulas.
Uses In Skincare & Cosmetics
Used across cleansers, serums, and moisturizers to maintain consistent performance and feel throughout the product's life.
Comedogenic Rating
This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.
Safety
Generally very safe and non-sensitizing in cosmetics. Any stinging usually reflects the overall formula's acidity rather than the buffer itself. No common regulatory restrictions for standard cosmetic use.
Is Monosodium Citrate a Good Ingredient?
As a well-established, stable pH buffer, it keeps formulas consistent and gentle, with a strong safety record and minimal irritation at typical use levels, which earns it Great.