Question:
Can a person use(rub or spread) baby oil or olive oil on Shabbos to keep hands or feet supple or babys bottom supple?
Answer:
Thank you for your question.
Baby or olive il may be used on Shabbos and there is no issue that one might be smaring it, because they are very thin any watery. Therefore memareiach will not apply.
Best wishes
Sources:
O:CH 327-1,2, M:B 314-45.