Not new. In the 1970s in the San Francisco Bay area were the house-to-house parties selling Jaffra beauty products. An ingredient in many of their facial cleansers and "rejuvenators" was.. baby placenta.
But you don't have to kill a baby to get placenta; I've heard (perhaps just an urban legend?) of an anti-aging cream made of foreskins, also. People are so desperate it's funny.