My jeweler gave me an organic jewelry cleaner when I bought my wedding ring that was never able to bring the sparkle back to my diamonds and accelerated the corrosion of my white gold plated wedding ring. And, it was moldy within about 1 month. But with this cleaner - oh my! My diamonds were sparkling like brand new after one use and my white gold was shining so nice. I am very pleased with the product and the cost. Much better than the expensive brand my jeweler was insisting that I use. And - no mold!