Which should I apply first, the Face Oil or Deep Repair Eye Serum? September 05, 2019 23:40 Updated Follow Our Deep Repair Eye Serum is a very rich, oil-based serum, so it will absorb best if it’s applied before the Face Oil. Related articles At what point in my routine should I use Face Oil? Why does my new bottle of Face Oil have different color or scent than my previous one? What is your return policy? How long does it take to see results? What is best for addressing blackheads?