I am sure new mommies think the very best for their newly-born children and they buy the “best” products to wash their delicate skin. Surprisingly, these products aren’t what they are supposed to be, according to a new analysis made by the Campaign for Safe Cosmetic Use.

The analysis found that many baby and child care products contain the chemicals formaldehyde and 1,4-dioxane, both of which have been blamed for cancer and various skin conditions but the labels don’t list them.

Formaldehyde and 1.4-dioxane are considered probable carcinogens. Formaldehyde can lead to allergic reactions in sensitive people. Japan and Sweden have banned the chemical from personal care products.

Forty-eight top-selling children’s products were tested for both chemicals. The researchers at the Campaign for Safe Cosmetic Use found that 32 contained trace amounts of 1.4-dioxane and 23 contained small amounts of formaldehyde. Both chemicals were found in 17 of the tested products.

“Companies can obviously do better, and we need to demand that they do better. Many companies are already making great products that don't have any of these chemicals [and] many companies in the natural products industry have reformulated to get rid of that problem. We also know many companies are using preservatives that don't use formaldehyde,” said Stacy Malkan, co-founder of the Campaign for Safe Cosmetic Use and co-author of the report, released Thursday.

“No More Toxic Tub” is the first analysis to document contamination of children’s products with formaldehyde and 1,4-dioxane. However, the results are not meant to alarm parents, but rather to inform them that child care products claiming to be gentle and pure are in fact contaminated with carcinogens, something that can be avoided, Malkan said. She is calling for the government to more strictly regulate personal care products such as shampoo, lotion and makeup.