Zylkene is a calming supplement that contains a natural ingredient derived from a protein in milk called casein that has clinically proven calming properties to help relax cats and dogs. It is a peptide (protein) molecule, well known to promote the relaxation of newborns after breastfeeding by delivering 'calming messages' to the brain via the body's natural 'messenger' system (scientifically known as Neurotransmitters).
The yeast flavoured chews can be given as a treat to help your bond with your pet while also calming them.
