Some of the most effective incenses are the simplest. One ingredient can serve the purposes you need. So before concocting some elaborate blend, take a look at this list and see if perhaps your need is included here. Then check out my blends
Incense composition and use is an art form in itself. Basically, an incense is any combination of plant material, perhaps combined with essential oils and a base, which are mixed together and burned or smoldered on charcoal.
In magical use, incense is burned for its vibrations alone as a kind of spell, while visualizing. But it can also be used as a background while performing other types of magic.
To use incense, ignite a charcoal block (the kind sold at meta-physical stores, not the kind you barbecue on!) and place in a heat proof container. An incense burner is fine, so is a dish half-filled with salt or sand. Sprinkle a small amount of incense on the glowing charcoal every few minutes during your spell.
Remember, however, that many sweetly-scented plants smell quite differently when burning, so don't be surprised if your incense isn't pleasant. The important factors here are the vibrations, not the scents.
From Cunningham's Encyclopedia of Magical Herbs
Following are some of my favorite incense recipes. Remember, all herbs burn better if they are ground. If you don't want to take the time to grind them yourself, buy them already ground and mix in the proportions I give.