Why You Should Use Sulfate-free Shampoo…
At the microscopic level, one end of a surfactant molecule draws to water, the other repels it and attaches itself to oils in dirt. These opposing forces create a back and forth motion that loosens dirt and suspends it in the suds, ready to rinse away with warm water.
Condition after each shampoo, but also consider conditioner washing, also known as co-washing or no-poo, on days hair is relatively clean but needs refreshing or taming. This involves no shampoo, just a conditioner that acts as a light cleanser while it coats the hair cuticle.
Each strand has a light negative electric charge called an anion. That anion requires a neutralizing conditioner to decrease static electricity and to smooth down the outer layer hair cuticle. Even after a rinse of water, some conditioner remains on the hair due to the strong positive-negative charge attraction. The cleaning part comes into play when the conditioner’s surfactants surround dirt, dislodge it, and rinse away.