Are plastic baby bottles safe if they contain bisphenol analogues like BPS or BPF?

What's actually in it

When manufacturers label a bottle as BPA-free, they often replace BPA with other chemicals called bisphenol analogues. The most common replacements are BPS (bisphenol S) and BPF (bisphenol F). These chemicals are part of the same family as BPA, and they are used to make plastics hard and clear.

Plastic bottles aren't just sitting there doing nothing. They leak chemicals into your drink. Research shows that these plastics can also release microplastics that carry bisphenols and other harmful compounds directly into the body, according to a 2026 study in Environ Pollut.

What the research says

The science is clear: swapping BPA for BPS or BPF does not solve the problem. These chemicals are not safe for your hormonal health.

A 2026 study in Toxics found that both BPF and BPS interact with estrogen receptors in the body. This means they act as endocrine disruptors, which are chemicals that interfere with your body's natural hormone signals.

The risks go beyond just hormone disruption. A 2026 study in Ecotoxicol Environ Saf highlights the serious nature of these chemicals by linking exposure to bisphenol analogues to survival outcomes in cancer patients. Furthermore, a 2026 study in Food Chem Toxicol confirms that humans face cumulative toxicological risks from these substances in everyday products.

Because these chemicals are found in everything from paper products to personal care items, as noted in a 2026 study in Front Public Health, your baby is likely exposed to them from multiple sources. You don't want to add to that load with a plastic bottle.