Regal Essence Tea Tree Essential cures acne naturally, treat head lice, heals irritated skin and retains moisture to heal dry scalp. It's a 100% Organic Remedy For Dandruff, Acne & Stress. Regal essence tea tree essential oil is extracted from the leaves of the tea tree plant through the steam distillation method. Tea tree oil is an effective solution for the skin and hair. It has been used since earlier times to keep the skin free from all sorts of infection. This regal essence essential oil also has applications in aromatherapy because it helps to keep the skin healthier.