Regulatory bodies such as the FDA in the US have strict guidelines for the use of the term "soap". Many products found in supermarkets are actually synthetic commercial detergents rather than genuine soap. These synthetic detergents work by removing the natural oils from your skin, which often leads to the need for moisturizing lotions. Interestingly, the natural glycerin that is typically present in soap is often added to hand creams and body lotions instead. This means that when you purchase supermarket brands like "Dove", "Aveeno", or others, you are not buying real soap but rather commercial synthetic detergents. To avoid using the term "soap", these brands often label their products as "beauty bar" or "moisturizing bar". By understanding this distinction, you may find yourself buying two separate products when you only intended to purchase one.