“Glove thickness is usually given in the unit mils, which is equal to one one-thousandth of an inch”
7 thousandths of an inch is well within the thickness that generates a measureable capacitance.
Hoot is not really correct, it’s not the charge in your body. It’s the difference in charge across an insulator sinking some amount of farad energy, and that change in sink capacity being measured.
You could make your own capacitor with some insulating resin paint and a couple metal plates.