CW Apothecary's Calendula infused oils are made from heating (infusing) dried Calendula Herb at a very low heat for 3 days. We use Hemp Oil with a little coconut oil and vitamin E as our carrier oil of choice. It's a great way to use Calendula topically for sensitive oily, and acne-prone skin. Calendula Infused Oil is naturally absorbed through the skin and can act as a medium to carry herbal constituents deeper into the body. We have had great luck with our Calendula infused oils and now available to you.