Does soap need to lather?

What most people don't realize, is that soap, shampoo, toothpaste and other cleaning products (both personal and household) don't need to have a lot of lather to do their job. Soap lather, which suspends dirt by creating greater surface tension in water, traps dirt for easy removal through rinsing.

Why does soap make foam?

Soap bubbles can be formed with "soapy" water, which can be very stable and can fly! ... Foam is created when the surface tension of water (attraction of surface molecules toward the center, which gives a drop of water its round shape) is reduced and air is mixed in, causing bubble formulation.