I have treated myself to a Deesse Sculpta device. They don't make their own conductive gel but tell you to use any oil free gel or oil free serums/moisturisers. My skincare is oil based (Sunday Riley CEO range) so I can't use that. A quick search shows a myriad of options from cheap as chips aloe gel on Amazon to mega expensive, designed specifically for this type of tool and loaded with ingredients. Does anyone have any recommendations? Doesn't have to be for this specific model. TIA!