“It’s not so much what we put in our shampoo that makes it kinder on eyes,” explains
Johnson & Johnson’s Brian Walmsley. “it’s what we leave out.” Adult shampoos contain
stronger detergents than our baby products and/or the same mild detergents, but
in larger quantities. This is because adult hair is thicker, and so dirtier than
a baby’s. Grown-ups also want colourants and conditioners in their shampoos –
like silicon. This coats the hair so it feels soft, but is impossible to manufacture
in such a way that it doesn’t sting your eyes.