In India, the neem tree (Azadirachta Indica) is a sacred tree that produces a vegetable oil with benefits that have been recognized for centuries. The oil is obtained by cold-pressing the almonds extracted from the stone of the fruit from this tropical tree. Neem oil has a rather strong odour and because of this, many people prefer to dilute it in other vegetable oils.
Characteristics and benefits:
Risks, precautions and contraindications of neem oil: neem oil must never be heated to a temperature above 60° C, at the risk of losing its active properties. Further, it must be used externally only. Neem oil would in fact be an endocrine disruptor.
Conservation: Store in a dry, dark place, away from light and heat. Neem oil will solidify at temperatures of less than 25° C, but this does not change any of its properties.
It can be used on its own or in association with other natural products, for example clay on acne blemishes.