Potassium phosphate is a salt used in cosmetic and skincare formulations primarily as a buffering agent and pH stabilizer, helping maintain product stability and skin compatibility. It is considered a base/formulation ingredient rather than an active treatment.
| Reported effect | How often | Notes |
|---|---|---|
Mild skin irritation | Rare | Occasional transient redness or stinging, typically at higher concentrations or on compromised skin |
Contact sensitization or allergic reaction | Very rare | Rarely reported; reactions are uncommon as it is generally well tolerated |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.