The Index · Buffer salt
Dipotassium Phosphate
Dipotassium Phosphate
Dibasic potassium phosphate buffer used with monobasic salts for pH control.
FunctionalFunctional ingredient, not graded for skin benefits
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Dibasic potassium phosphate buffer used with monobasic salts for pH control.
What it does
Maintains target pH in cream systems such as CeraVe moisturizers.
The evidence
Functional ingredient (not graded for skin benefits): Standard buffer salt. Credible chemical identity and cosmetic-use context come from CIR/SCCS/manufacturer INCI definitions and databases such as SpecialChem/PubChem[1].
How to use it
Expect this as a supporting INCI line item unless labeled as a featured active.
What it does in the formula
Functional ingredient — not graded for skin benefits
Dibasic potassium phosphate buffer used with monobasic salts for pH control.[1]
Safety & limits
Source and region, always
all — Used in cosmetics within conventional leave-on/rinse-off levels; see cited safety literature.[1] CA US EU UK
Sources · 2
Numbered as cited in the text
- [1]Cosmetic Ingredient Review. Phosphate salts context. CIR (2015)regulator
- [2]NIH PubChem. PubChem Compound Summary: Dipotassium Phosphate. PubChem (2024)other
Revision history
18 Sept 2026Drafted by botTheSkindex Desk