Products for animals (colloquially called cosmetics for animals) are classified as chemical mixtures. The safety of their use on animals is regulated in legal acts other than the cosmetics regulation, including legal requirements regarding general safety of chemical products / substances and mixtures, or the REACH regulation. The dog’s skin is much more delicate and has a different pH than human skin. It performs many functions (it protects a pet against physical damage, toxic factors or microorganisms, but also has a secretory function and is an organ of the senses). Animal products must be developed in a different way to humans, because, for example, fragrances that are attractive to humans are not well tolerated by animals. It is recommended, first of all, to avoid certain repellent odors, such as peppermint, rosemary or citrus. In animal products, it is advisable to use, for example, the smell of lavender, because it has a soothing and relaxing effect on animals. Regardless of everything, animal products must be safe both in terms of their use and in terms of toxicology.