University of Southern California, Los Angeles, CA, USA.
Dermatitis. 2012 Jan-Feb;23(1):48-9. doi: 10.1097/DER.0b013e31823e202d.
Tea tree oil is an increasingly popular ingredient in a variety of household and cosmetic products, including shampoos, massage oils, skin and nail creams, and laundry detergents. Known for its potential antiseptic properties, it has been shown to be active against a variety of bacteria, fungi, viruses, and mites. The oil is extracted from the leaves of the tea tree via steam distillation. This essential oil possesses a sharp camphoraceous odor followed by a menthol-like cooling sensation. Most commonly an ingredient in topical products, it is used at a concentration of 5% to 10%. Even at this concentration, it has been reported to induce contact sensitization and allergic contact dermatitis reactions. In 1999, tea tree oil was added to the North American Contact Dermatitis Group screening panel. The latest prevalence rates suggest that 1.4% of patients referred for patch testing had a positive reaction to tea tree oil.
茶树油是一种在各种家庭和化妆品产品中越来越受欢迎的成分，包括洗发水、按摩油、皮肤和指甲霜以及洗衣液。因其潜在的防腐性能而闻名，它已被证明对多种细菌、真菌、病毒和螨虫具有活性。该油通过蒸汽蒸馏从茶树的叶子中提取。这种精油具有刺鼻的樟脑味，随后是薄荷醇般的清凉感。茶树油最常见于局部产品的成分，使用浓度为 5%至 10%。即使在这个浓度下，也有报道称它会引起接触致敏和过敏性接触性皮炎反应。1999 年，茶树油被添加到北美接触性皮炎组筛选小组中。最新的流行率表明，接受斑贴试验的患者中有 1.4%对茶树油呈阳性反应。
