Holy basil oil may be useful in the treatment of acne
Researchers wanted to study the anti-bacterial activity of oils made from sweet basil (Ocimum basilicum), holy basil (Ocimum sanctum), and hoary basil (Ocimum americanum). Hoary basil had no anti-microbial effects against acne at all in vitro. However, both sweet basil oil and holy basil oil did. While sweet basil oil was found to be more effective against acne than holy basil oil, both herbs were found to be suitable for a skin care treatment of acne.