Alkylglycerols (alkyl-Gro) are ether lipids abundant in the liver of some elasmobranch fish species such as ratfishes and some sharks. Shark liver oil from Centrophorus squamosus (SLO). or alkyl-Gro mix from this source. have several in vivo biological activities including stimulation of hematopoiesis and immunological defences. https://www.chiggate.com/shades-eq-09gi-hamptons-supply/