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What is the azadirachtin content in neem oil?
According to the National Library of Medicine, the azadirachtin content in neem oil can vary between 300ppm and 2500ppm (parts per million). This often depends on the extraction technology used, as well as the quality of the neem seeds which the oil has been taken from.
The neem oil sold in our shop (Ourons) has a minimum azadirachtin content of 1500ppm. At this value, a wide number of garden problems can be treated, including (but not limited to): insects; aphids; whiteflies; snails; scale; cockroaches; flies; and moths.
What are the active ingredients in neem oil?
The main active ingredient in neem oil is azadirachtin. This is a chemical compound originally from the neem tree (Azadirachta indica). It is found in neem seeds, and is low in toxicity. It is primarily used as an ingredient in plant protectors, and is safe for human use.
There are other useful ingredients in neem oil. These include:
- Nimbolinin– A natural product most commonly found in the Chinaberry tree (Melia azedarach) in India
- Nimbin– A chemical which is commonly thought to be responsible for the biological activities of neem oil. It is also thought to have anti-inflammatory, anti-fungal, and anti-histamine properties, among others
- Nimbidin– An ingredient which most commonly contains anti-bacterial and anti-fungal properties. It is found in the seed oil of the Neem tree
- Sodium Nimbinate– An ingredient that has diuretic, anti-arthritic, and spermicidal properties
- Gedunin– An ingredient that has been used to treat various illnesses, including malaria
- Salannin– An ingredient found in plant protectors, which regulates plant growth, metabolism, and is an antifeedant. It also serves as an insect repellant
- Quercetin– A plant pigment found in many plants and foods, including red wine, onions, green tea, and apples