MiracleMist does not contain bleach, phosphates, heavy metals or lye. It's non-corrosive, biodegradable and plant-friendly, too. Just apply it evenly to the surface you want cleaned. No need for damaging pressure washing or scrubbing. MiracleMist will do the rest of the work, producing results in as little as 60 days. MiracleMist's residual technology keeps stains away.