On March 31, 2026, researchers at NYU Langone Health published a study in eClinicalMedicine estimating that DEHP (di-2-ethylhexylphthalate) — a plasticizer widely used to make products flexible, including sex toys, medical tubing, and food packaging — contributed to approximately 1.97 million preterm births globally in 2018. That figure represents more than 8 percent of the world's total preterm births that year. The study further linked DEHP exposure to an estimated 74,000 newborn deaths and 1.2 million years lived with disability resulting from premature delivery.

Why It Matters

This study lands a one-two punch on the sexual wellness industry's materials conversation. First, it quantifies DEHP's global health toll at a scale that is difficult to ignore — nearly 2 million preterm births is not a rounding error. Second, and more critically for manufacturers who have already reformulated, it demonstrates that the most popular DEHP substitute is comparably dangerous. For sex toy companies, the implications are immediate: "phthalate-free" labeling that simply substitutes DiNP for DEHP may offer marketing comfort without meaningful safety improvement. The study adds scientific weight to calls for class-wide phthalate regulation and strengthens the business case for body-safe materials (platinum-cure silicone, stainless steel, borosilicate glass) as genuine differentiators rather than premium marketing fluff.

Perhaps more alarming than the DEHP numbers themselves is what happens when industry swaps it out. DiNP (diisononyl phthalate), the most common DEHP replacement chemical and one increasingly found in consumer products marketed as "DEHP-free," showed comparable risk levels — contributing to roughly 1.88 million additional preterm births worldwide. The finding undercuts the prevailing regulatory strategy of banning individual chemicals one at a time while their molecular cousins slide into the same products. Senior author Dr. Leonardo Trasande of NYU Grossman School of Medicine warned explicitly against this whack-a-mole approach, arguing that the entire class of phthalates demands scrutiny.

Geographically, the burden falls hardest on the developing world: the Middle East and South Asia account for 54 percent of the estimated illness burden, while Africa represents 26 percent of related health problems despite a disproportionately higher death rate relative to case numbers. The research was led by Sara Hyman, MS, as lead author, with contributions from co-investigator Jonathan Acevedo, MPH.

For the sex toy industry specifically, phthalates have long been the skeleton in the materials closet. While premium brands have moved toward medical-grade silicone and phthalate-free formulations, the global market — particularly budget products — still relies heavily on PVC and TPE softened with these exact chemicals. This study provides the most comprehensive epidemiological evidence yet that the stakes of material choices extend well beyond the individual consumer to population-level health outcomes.

Sources

Update — 2026-04-07

Initial entry — story first created.