明李时珍《本草纲目》记载“阿胶，本经上品"弘景曰：‘出东阿，故名阿胶’

长期服用阿胶能补充胶原蛋白，提高免疫力，气血双补，使面色红润，头发乌黑亮泽。

Ming Li's "Compendium of Materia Medica" records donkey-hide gelatin, the top grade by Philip King said: ' since it's produced in Dong'e, name it Ejiao'

Long-term use of gelatin(Ejiao) will supplement collagen, improve immunity, qi and blood, will glory face and strenghen hair.