You know, it is a funny thing, but having done thousands if not hundreds of thousands of nails in my time, I have never seen these exceptionally oily nails that everyone seems to be blaming these days for all of their problems. Why is that do you suppose? Are people more oily these days? ... come to think of it I don't see them these days either!! Where have they all come from or is it just a convenient excuse that covers all problems ??
People do not have one OILY thumb!!
They may have a thumb that was not prepared well, or they may flick a lighter many times a day if they smoke .. or they may put said thumb in their mouth and play with it or unconsciously rub at it with their index finger, force some peeling and then pull the rest off; but ''oily thumb syndrome'' I have not heard of before.
There is far too much blaming of these mythical oily nails for problems that need to be sorted out. By the time nails are prepared and the surface temporarily dehydrated, there is no oil. Don't look for excuses, take responsibility or find out what you or the client is doing.
The number of people who for whatever reason cannot tolerate nail products is infinitesimal. You will be unusual if you come across more than a handful in a lifetime behind the nail table.