In our reference data, Citrus Grandis Seed Oil can feed Malassezia (fungal acne).
Citrus Grandis (grapefruit) Seed Oil is a plant-derived lipid used in cosmetics primarily as an emollient and skin-conditioning agent, providing fatty acids and antioxidants that help soften and condition the skin. It is generally used as a supportive base/carrier ingredient rather than a clinically validated treatment active.
| Reported effect | How often | Notes |
|---|---|---|
| Allergic contact dermatitis | Uncommon | Citrus-derived oils may sensitize susceptible individuals, causing redness, itching, or rash. |
| Skin irritation | Uncommon | Can cause mild stinging or irritation, particularly on broken or sensitive skin. |
| Phototoxicity/photosensitivity | Rare | Citrus oils may contain trace furocoumarins that can increase sun sensitivity, though seed oils typically have lower levels than peel oils. |
| Contact urticaria | Very rare | Rare immediate hypersensitivity reactions with hives have been reported with citrus ingredients. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.