Regarding Dogs: You can use almost any of your Zanabella products on your dogs for their dry pads or skin with a few exceptions including the Mint Chocolate Lip & Hand Butter Balm(CONTAINS CHOCOLATE) and the Glycolic Tonic(CONTAINS GLYCOLIC ACID).
Personally, I massage my dog's coat with the French Lavender Body Creme and I use a small amount of the Triple Healing Salve for his paws in the winter. Also, especially for those in the city, gently cleanse the paws after coming in from walks. The street and sidewalk salt is super damaging to their skin. Make sure that your pet has a calm environment as well as a balanced diet and is properly hydrated because dry skin can be a reflection of stress, inadequate nutrition and/or dehydration.
Regarding Kitties: I know it's tempting to share your Zanabella products on all your loved ones but.. the best thing for your cat is just a small amount of Zanabella Shea Butter or pure coconut oil. Just massage a small amount onto their pads and coat but only if needed. And just the same with dogs-Make sure that your kitty has a calm environment as well as a balanced diet and is properly hydrated because dry skin can be a reflection of stress, inadequate nutrition and/or dehydration.

The very basic answer is YES they are. They can be toxic to birds as well. Dogs, on the other hand,  have a system that is much similar to humans so dogs are not affected in the same way.
​The big culprits are the oils that contain PHENOLS, KETONES and D-LIMONENE. Basically all the most awesome ones for us humans!
A lot of people refer to cats as being "allergic" to essential oils which makes people think "Well they're not sneezing so I guess they're fine". Cats may not exhibit any external reaction initially, although, internally they may be suffering. 
​Always use caution when using diffusers and mists. Make sure the oils are out of reach of all animals and children. Never spray your cat directly with an aromatherapy mist containing essential oils. Most importantly, never apply or treat your cats directly with pure essential oils or products that are heavy with them(like certain natural over the counter flea medicine). Some say there are certain oils that are OK to use but personally, I'd rather be safe and just not do it.
​Long story short-keep this in mind and practice common sense. Your kitty is fine and good if you wear essential oils or use products that contain them. Just know that these products are for you and not them.
​Click here for a short article on the subject.