Calcium citrate is a calcium salt of citric acid used in skincare primarily as a pH buffer, mild chelating agent, and texture/stabilizing additive. It is generally considered a non-active formulation ingredient with low irritation potential.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation | Rare | Occasional redness or stinging, typically in sensitive skin or at higher concentrations. |
| Contact dermatitis | Very rare | Isolated allergic or irritant reactions reported. |
| Transient dryness | Rare | Possible with its mild buffering/chelating activity in some formulations. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.