A random test conducted on two batches of Johnson & Johnson's baby shampoo samples in Rajasthan has found traces of the chemical formaldehyde, a known carcinogen. This comes just a few months after the authorities launched an investigation into J&J's Baby Powder to see if it contains cancer-causing asbestos. J&J said in late February it had resumed production of baby talc after government tests found no asbestos in the product.