I've fed that Rex 100% Wheat Germ Oil before as well, Recently I been feeding "Wheat Germ Oil 100 Softgels By Now Foods". I found the Softgels were easier to keep and maintain then squirts or measuring oil out. I do believe the Rex brand is probably a higher grade but I am unsure. I've also heard to cycle the oils as well and to not feed one oil for a long time, any truth or research to this?