What is a scrub a scrub or body polish is a spa treatment which exfoliates the skin on your body leaving it feeling fresh smooth moisturised and soft an abrasive product is rubbed vigorously and massaged across and into your skin and is then rinsed away to reveal a moisturised layer of fresh clean and smooth skin what is a scrub good for there are many benefits to a body scrub or polish a body scrub will exfoliate your skin sloughing off dead skin cells and rubbing away hard and