Andin's Essentials Peppermint Oil is 100% pure peppermint oil. It comes in a 4 ounce bottle so it will last a long time. Peppermint oil has many uses and my favorite is using it as an air freshener. This oil comes with a dropper which makes it easy to use. For aroma therapy, I simply add a few drops in my diffuser with water and let it run. This oil works nicely and only requires a few drops to get a really nice fragrance. It has a minty aroma that's a pleasant smell. It refreshens the room and works wonders for cold symptoms. This oil acts as an expectorant and also helps to relieve congestion. It has many other uses including relieving headaches, muscle & joint pain, hair & nail care, anti-itch and even fighting off hunger cravings. Andin's Essentials Peppermint Oil is a nice sized bottle and a really nice oil. I received this oil in return for my unbiased review. You can check out more about Andin's Essentials Peppermint Oil @ http://www.amazon.com/Peppermint-Andins-Essentials-Freshener-Repellent/dp/B0146AAWZC/.