Unscented is safe for puppies, as well as cats. It contains no essential oils or colorants. The Lavender & Geranium may help discourage pesky fleas, ticks, and mosquitos. Be sure to avoid the eyes - this is not tear-free. The chamomile adds a little bit of extra soothing for the skin.
Let’s start with a quick understanding of pH (potential Hydrogen), the measure of acidity or alkalinity in a solution using a scale that measures from 0 to 14. So with 7 being neutral as the pH of pure water, a measurement over 7 would be considered alkaline while under 7 would be considered acidic. Each unit of measure represents a 10 fold change so a solution with a pH of 4.0 is ten times more acidic than a solution with a pH of 5.0, and a solution of 3.0 would be ten times again, or one hundred times more acidic than the solution of 5.0. So, the pH of a soap or shampoo can make a tremendous difference to the skin if it’s too acidic or not acidic enough. Our skin has a pH around 5.5, but a dog’s is more neutral, around 6.5 - 7.5. And this is why a shampoo made specifically for dogs is better than that baby shampoo you may have been using.