Ginger is a natural antiseptic that kills the fungi that cause dandruff. It inhibits the growth of yeast, stopping flakes, itchiness, and dandruff before they happen. (Source) It reduces inflammation of the scalp as well as treats scalp acne due to its antiseptic properties.
Glass substrate is a sheet glass which makes flat panel displays (FPD), such as liquid crystal televisions (LCD), plasma televisions (PDP), and laptops displays. The ingredients differ from the sheet glass used for windowpanes. Ingredients also differ between liquid crystal and plasma displays.
The substrate is the floor of the tank and the material where the aquarium plants will root. The most important factor is that the substrate should be a material that does not adversely affect the water conditions by raising or lowering pH and water hardness.