If I understand you right, simneil, you’re concerned about how the baby oil makes the skin on your penis more hydrated and soft, right? That doesn’t sound like anything to be worried about. Baby oil has been used for decades on baby butts with no apparent ill effects for most of the butts. It should be fine when applied externally to male genitalia.
But some people’s skin is more sensitive than others. I find that often when I put some new moisturizer on my face for the first time I break out. So I am very attentive to the ingredients of products, and look for lotions that have as few adulterants as possible. If your skin is particularly sensitive elsewhere, chances are it is on your penis too.
I also find the fragrance of baby oil is too much to stand. It is, I’ve heard, essentially just mineral oil, which can also be found unscented in the drug or toiletry section of many stores. I personally use Vitamin E oil. That’s basically vitamin E in a safflower oil base.
I am still searching for unscented baby powder… Anyone? Anyone? Bueller?