Pet Supplies T9402

New 120 ct bulk bottle. Zylkene is a complementary feed for cats and dogs which contains a natural product, derived from casein, a protein in milk. It is a molecule well known to promote the relaxation of newborns after breastfeeding. Launched in October 2013, Zylkene has become a familiar product for veterinary surgeons, behaviorists, nurses and pet owners for use in helping pets cope when facing unusual and unpredictable situations or before occasions such as a change in their normal environment.