Is there a problem with Dong 'e Ejiao?

Dong 'e Ejiao is a popular tonic, which is also called "nourishing three treasures" with ginseng and velvet antler. There's nothing wrong with it. I saved a lot last year, and then I brought two boxes to my parents when I went home for the New Year. It is said that nourishing effect is good. My dad said that after eating Ejiao for 2 months, even his hair felt shiny and he walked more vigorously than before.