If you're a dog owner, chances are you've used human shampoo on your pup at least once. (Hey, we've all been there!) But can this seemingly harmless act really kill your four-legged friend? Let's investigate.

The active ingredient in shampoo that does the cleaning is called surfactant. Surfactants work by reducing the surface tension of water, which allows the water to more easily penetrate the hair shaft and remove dirt and oils. Dogs have a different pH balance than humans, which means that human shampoo can be irritating to their skin. In some cases, it can even cause allergic reactions. In severe cases, human shampoo can lead to death.

That said, it's important to remember that dogs are relatively resilient creatures. It's unlikely that a one-time use of human shampoo will cause any long-term damage. However, if you regularly use human shampoo on your dog (or worse, if you use industrial-strength cleansers), you could be putting your pet in serious danger.

If you must use human shampoo on your dog, look for a mild variety ( baby shampoo is usually a good bet) and make sure to rinse thoroughly. And of course, if you have any concerns about your dog's health, always consult with a veterinarian.

So there you have it! Can human shampoo kill dogs? Technically, yes - but it's very unlikely that a one-time use will cause any serious harm. Just be sure to use a milder variety and rinse thoroughly if you do decide to go this route - and always consult with a vet if you have any concerns about your pet's health. Take a look at this article below showing the 5 best chi shampoos specifically for your dog!