The most commonly used type of wax by beauty salons, waxing professionals, or estheticians is hard wax. It is often preferred over soft wax because it is less painful, more effective at removing hair, and can be used on various body parts. Additionally, hard wax does not require strips for removal and is gentler on the skin. Some salons may also use a combination of hard and soft wax depending on the client's needs and the area being waxed.