Rayleen Thorne. Rupert Thorne's niece. Peak Human because of a lifesaving genetic engineering drug, tampered with completely accidently by the Joker - she was one of a dozen important hostages and got hit with some strange chemical concoction which she was more vulnerable due to her "cure". Now can control and produce copious amounts of any chemical the human body naturally produces, can affect herself or anyone else on skin to skin contact. She prefers delivering by kiss
Melanin - Complexion Change
Adrenaline - Speed/Strength Boost
Keratin - Claws, hair growth either gradual or catastrophic
Serotonin - Stress regulator: Cause or dispel stress
Endorphins - Feelings of Bliss, ecstasy
Mucus - Stick to things or become very slippery, depending on moisture content
Lactic Acid - Extreme Muscle Cramps
Stomach Acid/Bile - Mild acid and severe skin irritant.
Calcium/Bone Matter - Armor, spikes, etc
Blood/Skin/Marrow/Flesh - any of these to be a donor, or to effectively regenerate, but at a slower pace than say, Wolverine. Wounds take minutes to heal, too slow to be truly effective in combat but enough to where being left to die is really a non-issue.