Zinc and silver oxide nanoparticles are widely used in technology, science, cosmetology and medicine. Research objectives: to study the synthesis of zinc and silver oxide nanoparticles by a chemical method, to study the structure, properties and medical applications of synthesized nanoparticles. Synthesis of zinc oxide and silver nanoparticles performed using chemical method, which saves energy, temperature and the cost of expensive equipment. The synthesized zinc and silver oxide nanoparticles range in size from 17 to 26 nanometers. The skin-irritating effect of the medicinal cosmetic gel based on nanoparticles of zinc oxide and silver obtained by our method was not revealed.