The QX (Quick Xilver) silver nanoparticle pet care series from Hong Kong was founded in 2017 by Mr. Zhou Manquan, Managing Director of Hong Kong Weilong Optimized Living Group Co., Limited. Silver nanoparticles are applied in modern medicine for the care of burns, scalds, and post - operative wounds. They are characterized by extremely low sensitivity and do not cause drug resistance or dependence. In 2014, Mr. Zhou began to get in touch with the ingredient of silver nanoparticles. With years of experience in the western medicine industry, he decided to apply this ingredient to pet care products, aiming to provide a safer, more effective and less irritating pet care product that can replace antibiotics for cats and dogs. Thus, the QX silver nanoparticle pet care series came into being.