I bought neem oil at a local garden center. Not to promote any store over another, I have seen it at Lowes and Home Depot and most of the larger garden centers. I bought it full strength because it should be re-applied after everytime it rains and that can add up but should be left to the individual.
Sundari has a few products with Neem being a main ingredient.
It is extracted by crushing or pressing the seed of neem,
Lowes sells neem oil in their organic pesticides section.
Neem oil is not used for cooking and shouldn't be mixed with another oil that is. Mixing them would reduce the usefulness of each.
Yes
Collect neem leaves, crush them and sieve off the solids.
I found all sorts of Neem products at nice prices here: www.buyneem.com
Yes it's good to apply fresh neem leaves paste for excess oil on face.
Neem is the common name of Azadirachta indica (botanical name), it is called the Indian Lilac, although Neem is more commonly used. Neem oil, extracted from the seeds of the plant is used widely as an insecticide.
Try spraying with Neem oil once a week until gone. You can find 100% neem oil online and mix according to directions.
margosa tree ( neem tree)
Neem oil is not known to be harmful to mammals, birds, earthworms or some beneficial insects such as butterflies, honeybees and ladybugs. However, Neem oil is not used for cooking purposes, its use is in preparations for cosmetics, soap, hair products, body hygiene creams and hand creams), It is also used as a folklore traditional medicine.
Copper is generally not compatable with oil products such a Neem. It may cause leaf burn. Always refer to the label on the pesticide for instructions on the mixing compatability with other products.