Yes because it is a special; type and it's kind of like a fertilizer but different
It is extracted by crushing or pressing the seed of neem,
Lowes sells neem oil in their organic pesticides section.
you use decayed animals for fertilizer and oil.
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.
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.
Neem is to have better skin and usually comes in a pill form. the OO you'd probably spread on the skin. You can take both together and it won't harm you.
Get neem oil and use that
Yes it's good to apply fresh neem leaves paste for excess oil on face.
NEEM oil or NEEM based products found in the organic section of your hardware store. Also Pyrethrum based products. you could also use chili spray products, with less effects.
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.