How do I use multiple oils at the same time? Support Updated February 16, 2017 08:39 Follow When applying multiple oils to the same area, use one oil at a time and allow for absorption before applying the next oil. Related articles What are carrier oils and why are they important? How many drops should I use? How do I find out how to use each oil? Are your oils safe for aromatic, topical and internal use? Comments 0 comments Please sign in to leave a comment.