Science
Mechanism of Action
In skincare, Potassium Biphthalate functions primarily as a pH buffering agent. It acts to stabilize and maintain a product's pH within a specific range by neutralizing minor acidic or basic shifts, rather than exerting active biological effects on the skin.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
Potassium Biphthalate is not commonly identified as an active ingredient in skincare; therefore, its inclusion in formulations is not typically subject to 'dusting' practices.
The Formula
Formulation
Stability
This ingredient is a solid that demonstrates high stability in air and is not hygroscopic. It effectively buffers aqueous solutions, with an optimal range between approximately 4.4 and 6.4 pH units, and is considered a reliable standard for pH 4.00 solutions.
Safety
Safety Profile
Potassium Biphthalate has not been formally reviewed by the Cosmetic Ingredient Review (CIR) Expert Panel for cosmetic use and falls under a category of ingredients with 'No Reported Uses' in the FDA's Voluntary Cosmetics Reporting Program. It is distinct from other phthalate esters (e.g., DEP, DBP) which are sometimes used in cosmetics; the FDA's current safety assessments regarding phthalates in cosmetics do not specifically refer to Potassium Biphthalate, which is primarily a laboratory chemical.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While a reliable pH buffer, there is insufficient data to evaluate Potassium Biphthalate's direct benefits or specific safety profile for active cosmetic use on skin.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources