Properties and Benefits Neem oil has antiviral, antibacterial, antiparasitic, antiseptic and antifungal properties that make its use suitable not only for taking care of our health and beauty but also for protecting plants and animals from parasitic infestations. To make neem oil more fragrant, one can add fragrant essential oils with properties appropriate for the disorder one is trying to treat or prevent. Neem oil is also known for its ability to boost immune system activity, as well as its anti-inflammatory, antiparasitic, and antifungal properties. Neem oil is very powerful and concentrated: it can be added in the amount of a few drops in natural base creams or in more gentle vegetable oils such as jojoba oil for application on the skin .