Supreme Products Glistening Oil. The Supreme Products Glistening Oil is the perfect product to add a little glimmer to the final touches before entering the show ring. Glistening Oil can be used to touch up the eyes, muzzle, coat and legs and can be used to enhance and highlight you horses best points especially under artificial lights. This Oil is a lighter density oil and contains citronella and a UV sun filter to avoid sunburn in sensitive or lighter coloured horses.