Tin oxide is an inorganic mineral compound used in cosmetics primarily as an opacifier and to enhance the luster or sparkle of pearlescent pigments and mica-based colorants. It serves a formulation and aesthetic role rather than providing any skincare treatment benefit.
| Reported effect | How often | Notes |
|---|---|---|
| Skin irritation | Rare | Generally considered low irritation potential when used at typical cosmetic concentrations. |
| Allergic contact dermatitis | Very rare | Isolated sensitization reports; tin compounds are uncommon contact allergens. |
| Eye irritation | Rare | Possible mild irritation if powder formulations come into contact with the eyes. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.