This stuff is conductive and does help to avoid localised tingling when using worn contact pads but it's thin and watery and dries too quickly so the pads fall off. There's no ingredients list on the packaging or labels so it could be made from anything. This is important since if there are no preservatives it could "go off" like food and grow all sorts of nasty greebies. Probably made in a bucket in China somewhere.
I have used similar "professional" remote thermometers to this (10 time the price) in the past at work so I thought I would buy this for home use. Seems quite accurate. Emissivity adjustment useful. However the "beep" that almost deafens you when the temperature is acquired is completely unnecessary and as far as I can see, can't be turned off. Think I'll open it up and kill the beeper.