As a kid (90s), I read some comics about a woman who was an explorer of some sorts.
In one of them, she falls into a lava/magic pool that renders her invisible (she also becomes worshipped by a tribe of non-humans I think?)
In another, she ends up stranded on an island with dinosaurs.
Edit: The woman becoming invisible was not treated as a superpower (she couldn't turn it on/off) but as an ailment. Also, the woman's aspect was one of a young, slender girl with brown/red hair. The comic drawing style was not cartoonish (tending more to the realistic side)