I started to get skin problems after changing to a new type of neat cutting oil. I ordered latex gloves and Rosalex barrier cream. I then tried other barrier creams ( gloves in a bottle and pr88) but didn't get on with them, mainly smell and stickyness but mostly because I liked Rosalex.
The neat cutting oil that caused the problems is now long gone. The latex gloves get used occasionally. The barrier cream is, however very much a part of my daily routine. I think that the question of which barrier cream is largely irrelevant, just find one that suits you and go with it.
It is easy to see why so many of us use safety glasses. One accident could easily leave you with permanent blindness in one or both eyes. Skin problems are much more likely to occur over time and are therefore able to slowly creep up on us. Anything that can prevent this is surely a good thing.
Perhaps those that are members of clubs (when clubs are a thing again) could persuade them to buy the main contenders so that people can try them.
David.