Our Rasta Incense Air Freshener Fragrances are made of several ingredients. They can be all natural or synthetic or both. They have three main parts when be formulated or created.You have the top, middle and bottom notes.The top note is the first light odor you smell when evaluating a fragrance.This is sweet, light fruity type odors.The middle is also known as the body. This will be the complex part of the fragrance.This will be the main ingredients that make it floral, woodsy, feminine or masculineThe bottom note is the lasting fragrance.Mainly musk, cedar type odors