Hypericum Perforatum (St. John's Wort) extract is a plant-derived ingredient used in skincare for its purported anti-inflammatory, antioxidant, and wound-soothing properties, attributed to compounds like hypericin and hyperforin. It is sometimes incorporated into formulations targeting irritated or minor compromised skin.
| Reported effect | How often | Notes |
|---|---|---|
Photosensitivity / phototoxic reactions | Uncommon | Hypericin can increase skin sensitivity to UV light, raising risk of sunburn or pigmentation, especially at higher concentrations. |
Contact dermatitis / allergic skin reaction | Uncommon | Redness, itching, or rash in sensitized individuals. |
Skin irritation or stinging | Rare | Mild transient discomfort upon application. |
Hyperpigmentation following sun exposure | Rare | Linked to phototoxic potential of hypericin constituents. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.