I have been an student of Natural Nutrition for most of my life. I fell in love with Shaklee when I learned the value of quality products that was superior to anything that I have ever used. Shaklee has invested over $250 million in research and development. This has driven Shaklee to be the number one natural nutrition company in the United States. Shaklee Products is backed by documented clinical studies. The vitamins industry is not regulated and anyone can buy vitamins at any local store or drug store. I suggest buying products that adhere's to high standards and proven research in the quality of nutritional supplements.