Is bisphenol A in thermal receipt paper dangerous?
Yes. Bisphenol A (BPA) is used in thermal receipt paper and can be absorbed directly through your skin, posing a significant health risk.
What's actually in it
Thermal paper, the kind used for most store receipts, is coated with bisphenol A (BPA). This chemical acts as a color developer. It allows the printer to create text without using ink. The problem is that BPA is not bound to the paper. It sits on the surface in a loose powder form.
When you touch a receipt, the BPA easily transfers to your fingers. From there, it can be absorbed directly into your bloodstream through your skin. You don't even need to ingest it for it to enter your body.
What the research says
A 2026 study in J Pak Med Assoc highlights that this is an overlooked occupational hazard. The research confirms that dermal absorption (absorption through the skin) is a major pathway for BPA exposure.
This peer-reviewed study identifies the widespread use of thermal paper as a source of constant, daily exposure for many people. Because BPA is a known endocrine disruptor, this type of contact is a concern for anyone handling receipts regularly.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Dermal absorption of bisphenol A through thermal paper receipts: An alarming and overlooked occupational hazard. | J Pak Med Assoc | 2026 |
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