Yes, they are safe. HomeoPet ingredients have 10% USP alcohol and plant based Glycerine for palatability and are commonly used food based preservatives. The alcohol is pure ethyl alcohol, used for preserving natural ingredients. In rare cases, a cat or dog may be sensitive to alcohol and salivate or shake their head in response to the alcohol content. This can be alleviated by putting the drops on food/treat and letting it sit for 10 minutes before presenting it to your pet as the alcohol will evaporate. Alternatively, placing drops in a small amount of water and letting sit for 10 minutes will also work if there is a known sensitivity.
NOTE: When dosing very small or young pets or birds, mammals or exotics, always dilute the dose into fresh drinking water, do not administer directly to the animal, to prevent aspiration.