The best calming aids contain pheromones, rosemary, chamomile, and/or tryptophan, says Satchu. Because cats are individuals, and no product will be effective with 100 percent of cats, you may need to try several categories of calming aid to find the one that works for your feline. We recommend starting with the Feliway Optimum Enhanced Calming App Vay Tiền Nhanh.

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