Neem oil is insoluble in water and therefore an emulsifier has to be used to enable easy application by spray. A detergent such as washing up liquid can be used but we recommend our Eco-friendly gentle emulsifier for use with neem oil. It is an effective mix of two of the most gentle & eco-friendly biodegradable detergents available.
98% biodegradable & recommended by the Swedish Environmental Protection Agency

Supplied in a 30ml dropper bottle.