Yes, according to the provided reference, Bio-Oil appears to work well under makeup, acting as a face primer.
Based on the YouTube video transcript provided, the individual in the video uses Bio-Oil as a primer and reports the following:
- The Bio-Oil blends "really nicely" when applied with a brush.
- The final look is "so good" and "so natural."
This suggests that Bio-Oil can be used as a base for makeup and provide a smooth, natural-looking finish. However, individual results may vary depending on skin type and the specific makeup products used. More information or references would be required to provide a deeper analysis.