Free shipping and returns on MAC 'Mineralize' Volcanic Ash Exfoliator at Nordstrom.com. A highly effective, dual-purpose foaming, cleansing and exfoliating scrub blending natural volcanic ash with fine sugar crystals. Refines and unclogs the skin, adds instant moisture leaving skin feeling soft and comfortably clean.Mineral-rich. May be used effectively on any part of face or body. Rinses off with warm water.