Powerful cleaning plus ShineShield helps protect glasses. Helps keep your glasses looking like new. Etching is the permanent cloudiness on the surface of glassware. With regular use and proper dosing, Cascade with ShineShield helps neutralize the harsh effects that can cause etching. For even better etching protection, use with rinse aid. Cleans so thoroughly virtually nothing is left but pure clean, pure shine. Phosphorus Content: This Cascade formula averages no more than 6.4% phosphorus, in the form of phosphates, which is equivalent to 1.0 gram per tablespoon. Safe for septic tanks. Made in USA.