Several have asked for clarification about making herbal oils. I use first pressed, organic, extra virgin olive oil that I pick up at Costco. Any oil may be used.
Persons who make skin care products often choose other oils - feel free to give your comments here if you are one of them. I don't know that much about the benefits of the different oils - there's only so much my brain can hold.
How To Make Herbal Infused Oil: Fill your jar loosely to the top with your plant material.
Dump out plant material and let dry out a bit fat room temperature for a day or two - or place at low temp in a dehydrator for a few hours.
Put back in original jar, fill to top with oil of your choice, cap tightly.
You can place your oil in a sunny window or just on a counter or shelf somewhere at room temperature.
After 4-6 weeks your oil is ready to strain and use.
I often add vitamin E oil to mine to help preserve it a bit longer.
Can store all oils at room temperature or can store in a 'frig for longer storage.
Here is an article from Mountain Rose that is good, except that I prefer using fresh plant material.