Need a good scrub down? Exfoliation not only improves skin tone, but it can relieve the symptoms of certain skin disorders, such as eczema and psoriasis. When receiving a grind and glow coffee scrub you also stimulate the liver and adrenal glands to dump their toxins. By detoxifying, you assist your immune system in fighting infections and illness. Cellulite enemy #1 is caffeine, which tightens and provides antioxidants to the skin when applied topically.