Inquiring Minds

How Do No Tears Shampoos Work? (1x11)

Fecha de emisión: Nov 21, 1999

How surfactant, the ingredient in shampoo that causes the burning sensation and helps rid the hair of dirt, reacts with the eye's tear film. And a look at amphoteric surfactants, which are found in 'no-tears' shampoo, and their properties.