It's not essential oil, but it's best not to use it at this time, because it's the time when the body's resistance is the lowest, and drainage oil can eliminate edema, so it's a waste to use it at this time. If you still want to use it, you can use it on the fourth day. I suggest you buy it on Omitao's website. Clarins are authentic in domestic counters, the date is synchronized with the counters, and there are discounts! For your reference only.