Black Transdermal Rub The Cannariginals Black Line is considered by our customers to be the “Extra-Strength” formula with a stronger combination of premium cannabinoids. Like all Cannariginals products, Black Rub offers the same dual-patented formula to deliver relief from the surface of the skin deep into the joints and tissues where it’s needed most. 27,900mg Emu Oil, 120mg CBD, 60mg THC