Neem is possibly the most effective home remedy that is known to us. It is beneficial for your skin, your hair, your internal health, and your external hygiene as well. Extracted from the same leaves, barks, and stems of the Neem plant is the Neem Oil. 

• Good for skin - Neem oil treats acne, kills pimple-causing germs, prevents redness and inflammation, reduces scars and dark spots, diminishes signs of aging, such as wrinkles, fades hyperpigmentation, soothes sunburns, disinfects cuts & wounds, heals bruises, and keeps your skin healthy. 
• Good for hair - It keeps your scalp clean, by getting rid of infections such as dandruff, lice infestation, etc. Regular usage has been shown to be effective in keeping your hair healthy, shiny, and lustrous. This oil also imparts volume and density to your hair, as it treats chemically-treated hair and colored hair too. 
• Purifies - Neem oil can be used as an air purifier, as well as a body purifier. To purify the air, you can dilute it with some water and spray it in the air. For body purposes, mix some drops with bathing water to get rid of odor-causing germs, which further prevents body odor. 
• Repels mosquitoes, bugs, and insects - Dab some of the oil on cotton swabs or cotton cloth, and keep it near window panes, door hinges, and bed corners, to prevent bugs and insects from pestering you. 

How to use it? 

• Dab on cotton balls. 
• Dilute with water. 
• Dilute with carrier oils/creams/gels.