L-Histidine is a conditionally essential amino acid, so-called Neem (Azadirachta Indica) is a tropical tree that produces a yellow fruit that is edible. Neem Oil is well known for its insecticidal properties. The usage of Neem Oil, as insecticide, is very safe to the environment. Neem Oil is bio-degradable and non-toxic. Neem Oil is also an effective, all-natural insect repellant and is easily formulated into creams, lotions, sprays, etc.
Neem Oil is also an important derivative to be used in certain herbal remedies. It displays a stimulative and antiseptic effect when used for massage of the body. At the same time, it is an active remedy against boils, ulcers, and other obstinate ulcers resulting from chronic syphilis, as well as highly resistant ulcers. Neem Oil has proved to be remarkable and effective in infections like ring worm and itches. Whenever such infection has been suspected, its use makes the skin healthy by destroying the parasites.
Neem Oil has been a major ingredient in soap manufacture. Its antiseptic properties have been used to particular advantage in the manufacture of special medicated soaps and tooth pastes, in addition to pharmaceutical preparations like emulsions and ointments.