Her mutant status remains hidden from the public but is known by Henry "Hank" Pym and S.H.I.E.L.D.. She can generate a glittering wasp-like sting which she discharges through her hands. Her bio-electric blast, when applied from within the ear to the brain, reverts the Hulk to Bruce Banner during the New York massacre. Side-effects of her insectoid genetics include the occasional consumption of bugs, forming her own larval nests, and laying egg-like constructs. During her college years, she shares a room with Betty Ross and starts seeing Henry. Henry is abusive to her early in their relationship and during college is known to have hit her at least twice, putting her head through a door on one occasion and splitting the roof of her mouth on another. Betty can also recall instances where Janet is missing chunks of hair. Janet also suffers from severe bulimia prior to joining the Ultimates.