Even severe cases of acne have been shown to benefit from anti-acne preparations that contain up to 15% tea tree oil, an effect that can be explained by the oil's antibacterial and skin-healing properties.
In one study conducted in Australia, a comparison was made between a gel containing 5% tea tree oil and a traditional 5% benzoyl peroxide acne lotion. The products proved similar in their effectiveness against pimples, although the herbal preparation worked more slowly.
It was notable, however, that the product containing the tea tree oil caused significantly less dryness, redness, scaling, and itching to the surrounding skin.
Apply a drop or two to each acne lesion three times a day.