Comics and illustrations!
probably answers your question? And thanks!
Hey! Your first guess is correct, Alison had low level invulnerability since birth. Several other biodynamics in the comic also had effects or even full blown powers since birth, but for most people they increased dramatically upon puberty. Thanks for asking!
A lot of characters are called strong female protagonists when it’s kind of a cipher, and it doesn’t mean what it should mean. Like, a female character will be called a strong female protagonist for crying only a handful of times as opposed to the entire story, when Indiana Jones is not called a strong male protagonist for bullwhipping Nazis and shooting guns at ghosts and stuff. So [our webcomic Strong Female Protagonist] started as an exercise in making a character strong in every sense of the word that we could find, where she’s strong in a literary sense — or so we hope — strong in the sense of conviction and heroism and morality, and then physically, superhumanly strong.