To opawz.com 
We all know that hydrogen peroxide is an ingredient that is included in most commercial hair dyes. It is an easy way to brighten the hair or bring out hair’s natural highlights.
When it comes to safety for dogs, whether something can be deemed safe or not, generally boils down to much they’re receiving and where it’s going.
In Creative Grooming
First of all, understanding your dog’s skin condition is important while doing creative grooming.
We must keep in mind that canine skin and human skin are not the same.
There are approximately 20-25 layers to the human epidermis and there are only 8-10 layers to the canine epidermis. It tells us that canine skin is more fragile than human skin.
That’s why before hair dyeing your dog you should always check if there’s any irritated or damaged skin. Creative groomers should only use pet labeled hair dyes.
OPAWZ it’s a professional creative grooming products brand especially developed for pets, all of our products are none-animal tested.
The use of Hydrogen Peroxide can give the hair a slightly lighter coat for a few days but as soon as the oils in the dog’s skin come back it goes away. Normally the dark-haired coat was lightened for a better coloring result in creative grooming.
Below is an illustration of how Hydrogen peroxide interacts with hair color molecules:
A word of caution
Always test it on a small patch of skin and read the application manually before using.
Care must be taken to prevent the dog from licking his coat while the color processes. Careful to keep the hydrogen peroxide out of your dog’s eyes, nose, and mouth.
Product reference: OPAWZ lightening cream
Using Hydrogen peroxide to induce vomiting
If your dog ingests items, chemicals or foods that have the potential to be dangerous or even toxic, as awful as it may sound, you can use hydrogen peroxide on dogs’ to actually induce vomiting.
Hydrogen peroxide is an irritant to the dog's intestinal tract. Basically, once it is swallowed, it generates oxygen bubbles in the stomach. When there are enough bubbles, they stretch the dog's stomach and trigger vomiting.
According to veterinarian Dawn Ruben. Most vets say that you should stick to a 0.5-1 ml (depending on the size of your dog) dose of 3% hydrogen peroxide per pound of weight. Do not exceed 50 ml no matter what.