. "Plaintiffs say the company's popular baby powder product increases women's risk of ovarian cancer by 33 percent, and that J&J has known about the risk for more than 30 years.Extracted from mines across the U.S., talc is a hydrous magnesium silicate that is very soft on the mineral scale, making it an effective treatment for skin chafing, excess moisture, rashes and other skin problems." . . .