Parabens in Kids' Lotion Are Messing With Their Hunger Hormones

Parabens in your child's shampoo and lotion may be interfering with the hormones that tell their body when to stop eating. A 2025 study found links between paraben exposure and disrupted satiety signals in preschool-age children.

What the Study Measured

The ENVIRONAGE cohort study, published in Environmental Research (Reimann et al., 2025), measured urinary levels of four common parabens (methyl, ethyl, propyl, and butylparaben) in 188 children aged 4 to 6. Researchers also measured plasma levels of satiety hormones including leptin, pancreatic polypeptide, and GLP-1.

Higher paraben levels were associated with disrupted satiety hormone patterns. Leptin is the hormone that signals fullness. When leptin signaling gets thrown off, the body's hunger regulation breaks down. This is one pathway by which parabens may contribute to childhood obesity.

Where Parabens Come From

Parabens are preservatives used in shampoos, conditioners, lotions, sunscreens, and most personal care products. They're absorbed through skin. Children absorb more relative to their body weight than adults do. A child using multiple paraben-containing products daily gets meaningful exposure.

Look for products labeled "paraben-free." Better yet, switch to unscented, minimal-ingredient products with no synthetic preservatives. Browse non-toxic baby products for personal care items we've vetted.

Also see glass food storage for safer alternatives.

Source: Reimann B et al. (2025). Paraben exposures and satiety hormones in preschool children. Environ Res.