The phrase "shampoo base" refers to the main ingredients in shampoo that help clean and nourish the hair. It is the foundation or starting point of a shampoo product. Full definition
So it makes sense to avoid shampoos based on known irritants like sulphates, synthetic fragrances and anti-dandruff agents as these may actually increase the flaking and itching of a sensitive scalp. (odylique.com)
A coconut shampoo base includes vitamins A, D, E, wheat germ glycerides, hydrolyzed oat proteins and a special blend of cherry and botanical extracts and almond oil. (nuvetlabs.com)
When bathing your dog is necessary, make sure you bathe with a 100 % natural shampoo base enriched with herbs, pure essential oils and vegetable proteins. (thewholedog.com)