The phrase "quality shampoo" refers to a shampoo that is really good and effective. It means that the shampoo is made with good ingredients and will cleanse and nourish your hair well. Full definition
Show grooming consists of a bath with good quality shampoo and coat conditioner done a couple of days before the show. (cfa.org)
It should be noted that word of mouth is the most effective recommendation whilst buying quality shampoo for your dog to treat flea and ticks. (usbones.com)
Our salon uses the best quality shampoos specific to your pet's individual needs. (arrowheadranchah.com)