In our reference data, Zinc Oxide Sulphonated Shale Oil can feed Malassezia (fungal acne).
Zinc Oxide Sulphonated Shale Oil combines the soothing, mild astringent and physical barrier properties of zinc oxide with the antibacterial, anti-inflammatory and antiseborrhoeic effects of sulphonated shale oil (ichthammol). It is used in topical preparations for inflammatory skin conditions such as acne, mild eczema and minor irritations.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation or stinging | Uncommon | Transient localized irritation at the application site, often mild. |
Contact dermatitis / allergic reaction | Rare | Hypersensitivity to shale oil components or excipients may occur. |
Dryness or peeling | Uncommon | Possible with frequent use due to astringent action. |
Discoloration or staining of skin/clothing | Uncommon | Sulphonated shale oil has a dark color that may transfer. |
Photosensitivity | Very rare | Rarely reported; zinc oxide itself is generally photoprotective. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.