"It has been suggested that talcum powder might cause cancer in the ovaries if the powder particles (applied to the genital area or on sanitary napkins, diaphragms, or condoms) were to travel through the vagina, uterus, and fallopian tubes to the ovary."
"IARC classifies talc that contains asbestos as “carcinogenic to humans.”
"Based on the lack of data from human studies and on limited data in lab animal studies, IARC classifies inhaled talc not containing asbestos as “not classifiable as to carcinogenicity in humans.”
http://www.cancer.org/cancer/cancercauses/othercarcinogens/athome/talcum-powder-and-cancer
It is still safe to use something that doesn't have asbestos in it. Asbestos have long been known to cause cancer and I guess in the modern time many have stopped using it in their products. If you see any products that contain asbestos refrain from using it.