Abstract Johann Ludwig Wilhelm Thudicum described sphingolipids (SLs) in the late nineteenth century. but it was only in the past fifty years that SL research surged in importance and applicability. Currently. sphingolipids and their metabolism are hotly debated topics in various biochemical fields. https://www.spidertattooz.com/Static-Nails-Something-Extra-Rapid-Repair-Nail-Cuticle-Oil-p39591/