Can I use a Serum & Facial Oil together? Katya 17 January 2024 13:28 Updated Follow Yes. We suggest applying the serum first followed by the oil over the top. Related articles What is the best way to apply the Rosehip Bioregenerate Oil? What is the best skincare routine to follow? Do I need to wait for the mist to dry before applying moisturiser? Can I use the Rosehip Bioregenerate & Viper's Gloss together? Should I cleanse before exfoliating? Comments 0 comments Please sign in to leave a comment.