Melaleuca Alternifolia Extract, derived from the tea tree plant, is used in skincare for its antibacterial, antifungal, and anti-inflammatory properties, commonly targeting acne and minor skin infections. It contains terpinen-4-ol as a primary active component.
| Reported effect | How often | Notes |
|---|---|---|
| Skin irritation (redness, dryness, stinging) | Common | More likely at higher concentrations or in sensitive skin |
| Allergic contact dermatitis | Uncommon | Risk increases with oxidized product; sensitization documented in patch testing |
| Contact urticaria | Rare | Immediate hypersensitivity reactions reported occasionally |
| Systemic toxicity if ingested | Very rare | Topical use is generally safe; oral ingestion can cause serious effects |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.