How comes dog hate the smell of hand sanitizer?

Dogs have a highly sensitive sense of smell, and they can detect a wide range of scents at concentrations that humans cannot perceive. Hand sanitizers often contain alcohol and other strong chemicals, which can be overwhelming and unpleasant for dogs. Additionally, the scent of these substances may not be familiar or appealing to them, leading to a strong aversion. This heightened sensitivity to certain odors is a natural instinct, as dogs rely on their sense of smell for communication and navigation in their environment.