Serene-UM is a natural dietary supplement which contains natural ingredients required to produce increased amounts of a mood stabilising substance called serotonin for excessive barking, settling at night, separation-related disorders etc Serene-um drops contain the same ingredients as serene-um tablets but are presented in liquid form to pour onto your pets food. Inositol - Vitamin B3 - Taurine - L-Tryptophan - Calcium Bone - Vitamin B6 - Zinc - Vitamin E - Selenium - Vitamin D3
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