That’s precisely what it is-hit or miss and entirely individual. Just like any carrier oil really, but I believe that mig alongside EO and MCT seem to have a higher rate of adverse reactions compared to the traditional oils such as GSO and CSO. You’ll never know until you try it unfortunately. With other carrier oils such as GSO, CSO, and even MCT, you can find them easily online for under $10 and just pin the sterile oil to determine whether or not you react prior to investing in any gear made in it, but I’m unsure if you can find mig to do the same. You’d have to look as I’ve never done so personally.
@“SouthernCompounding” tagging Southern since he can likely chime in with far more knowledge on mig than myself