What’s In Your Baby’s Powder?
Use of baby personal care products associated with higher levels of phthalates
Babies recently treated with infant personal care products such as lotion, shampoo, and powder, were more likely to have manmade chemicals called phthalates in their urine than other babies, according to University of Washington and Seattle Children’s Hospital Research Institute study appearing in the February issue of the journal Pediatrics.
Phthalates (pronounced “thah-lates”) are added to many personal care and cosmetic products, as well many common household plastic and vinyl products, and some studies suggest they may affect reproductive development in humans.
Animal-based studies of phthalates have found that the synthetic chemicals can harm reproductive system development, and studies in humans have found that prenatal exposure or exposure through breast milk can alter hormone concentrations.
Early-childhood exposure has not been extensively studied, so additional research is needed to determine if phthalate exposure can indeed cause reproductive development problems or other adverse effects in infants.
In this study, the researchers set out to see if use of personal care products was associated with urine phthalate concentrations. To accomplish this, they collected urine samples from 163 infants aged 2 months to 28 months, and measured the levels of nine different phthalates in those urine samples. They also had the babies’ mothers fill out questionnaires on their use of infant personal care products in the past 24 hours.
When they cross-referenced the data, they found that the use of baby powder, lotion, and shampoo were each strongly associated with higher phthalate levels in the urine. The use of baby wipes and diaper cream were not strongly associated with increased levels of phthalates.
The scientists also found that every baby had detectable levels of at least one phthalate in their urine, and about 81 percent of the infants had detectable levels of seven or more phthalates. Babies who were 8 months old or younger had stronger associations between product use and phthalate concentrations, as did babies whose mothers used more infant personal care products.
“We found that infant exposure to phthalates is widespread, and that exposure to personal care products applied onto the skin may be an important source,” said the study’s lead author, Sheela Sathyanarayana, an acting assistant professor of pediatrics at the UW School of Medicine and a researcher with Seattle Children’s Hospital Research Institute.
“This is troubling, because phthalate exposure in early childhood has been associated with altered hormone concentrations as well as increased allergies, runny nose, and eczema. Babies may be more at risk than children or adults because their reproductive, endocrine, and immune systems are still developing.”
Parents who want to decrease their baby’s exposure to phthalates should limit the amount of baby care products used on the infant, and apply lotions or powders only if medically indicated. Since phthalates are also found in many household plastic products, like plastic food containers, parents can also stop putting plastics in the microwave oven and use glass alternatives whenever possible. Phthalate-free cosmetics and personal care products are also available.
This research project was supported by grants from the U.S. Environmental Protection Agency, the National Institutes of Health, and the National Institute of Environmental Health Sciences.
The project included researchers from the UW Departments of Occupational and Environmental Health Sciences, Pediatrics, and Biostatistics; the Seattle Children’s Hospital Research Institute; the Centers for Disease Control and Prevention; and the University of Rochester School of Medicine and Dentistry.
Reprinted with permission.
Identifying Products with Phthalates
You’ll rarely find the word “phthalates” on a label (except for the occasional “phthalate-free,” which is helpful).
Here are three tips for identifying products that have, or are likely to have, phthalates or another compound that has raised similar concerns and is found in similar products, Bisphenol A.
1. Read the ingredients.
According to the organization Pollution in People, you can identify phthalates in some products by their chemical names, or abbreviations:
- DBP (di-n-butyl phthalate) and DEP (diethyl phthalate) are often found in personal care products, including nail polishes, deodorants, perfumes and cologne, aftershave lotions, shampoos, hair gels and hand lotions. (BzBP, see below, is also in some personal care products.)
- DEHP (di-(2-ethylhexyl) phthalate or Bis (2-ethylhexyl) phthalate) is used in PVC plastics, including some medical devices.
- BzBP (benzylbutyl phthalate) is used in some flooring, car products and personal care products.
- DMP (dimethyl phthalate) is used in insect repellent and some plastics (as well as rocket propellant).
2. Be wary of the term “fragrance.”
The term “fragrance” is used to denote a combination of compounds, possibly including phthatates, which are a subject of recent concern because of studies showing they can mimic certain hormones.
3. Choose plastics with the recycling code 1, 2 or 5.