Can phthalates and bisphenols from household products cause allergies in children?

What's actually in it

Phthalates come from vinyl products, fragranced personal care items, and flexible plastic packaging. Bisphenols come from food cans, plastic containers, and receipt paper. Children are exposed from before birth through the placenta, and after birth through food, dust, and product contact. These two chemical families are the most common endocrine disruptors in everyday life.

Allergies, including eczema, food allergies, and hay fever, are rising in children. Researchers are looking at whether chemical exposure during early development plays a role.

What the research says

A 2026 study using data from two birth cohorts measured phthalate and bisphenol levels in mothers during pregnancy and in children during early life. The researchers then tracked which children developed allergic conditions.

Children with higher combined exposure to phthalates and bisphenols had more eczema, allergic rhinitis, and food allergies. The association was found across both cohorts, which strengthens the findings because the results were replicated in two independent groups.

The chemicals appear to skew the developing immune system toward an allergy-prone state. Instead of building tolerance to harmless substances, the immune system becomes primed to overreact.

Lowering exposure during pregnancy and early childhood can help. Use glass for food storage, choose fragrance-free products, and avoid soft PVC plastics in teething toys and bath products.