What’s the difference between regular detergent and HE (High-Efficiency) detergent?

HE detergents create fewer suds and disperse quickly to help get the best cleaning performance with only 20% to 66% of the amount of water used in traditional machines. HE detergents were actually developed by home appliance engineers and detergent scientists, resulting in an effective cleaning system. Traditional detergents are formulated to get great cleaning power with high water washes; they aren’t created to work well in low water.