As authorities in Hokkaido fret about an unwanted boom in the deer population, one firm is capitalizing on the situation by turning oil extracted from the fat of the wild animals into shampoo.

The overpopulation of native Ezo deer has caused huge damage to crops, forcing authorities to cull their numbers. Most of the meat, however, can't be sold as it does not meet standards for human consumption.

Cao Xuefeng, president of the leather goods firm Wayoutokushin Co., wanted to make better use of the parts of deer normally discarded in the process of creating deerskin leather.