Can BPA replacement chemicals cross from mother to baby?
Yes. A 2026 study found many emerging bisphenols in newborn urine, showing maternal-fetal transfer and mixed exposure before birth.
What's actually in it
BPA is one bisphenol. Many BPA-free products use related chemicals instead. These include BPS, BPF, and newer bisphenols most shoppers never see on a label.
BPA-free does not always mean bisphenol-free. That matters during pregnancy because some chemicals can move from mother to baby.
What the research says
A 2026 study in Environmental Toxicology and Pharmacology tested first urine samples from 90 newborns in Southern China. More than 95% of samples contained 2 to 11 bisphenols.
The study found high detection of emerging bisphenols, including TGSA and BPS-MPE. TGSA had a transplacental transfer efficiency above 1, suggesting effective placental crossing. TGSA exposure was also linked with higher odds of iatrogenic preterm birth in this study.
This study does not prove every BPA-free product is dangerous. It does show that replacement bisphenols can reach babies before birth.
What to do
During pregnancy, reduce food contact with plastic when you can. For baby items, choose fewer plastic products and use simple materials like organic cotton baby swaps for soft goods.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Maternal-fetal transfer of emerging bisphenols: Exposure profile and potential link to latrogenic preterm birth. | Environ Toxicol Pharmacol | 2026 |