Influencers have been sounding the alarm about sunscreen’s potential dangers, but is there any truth to these claims? To set the record straight, Madeleine Finlay spoke with Ian Sample, the Guardian’s science editor.
According to Ian, while it is true that some chemicals in traditional sunscreens can be toxic, the risks are generally outweighed by their protective benefits. The most common culprits are oxybenzone and octinoxate – chemical compounds used to absorb UV radiation.
However, recent studies suggest that these chemicals may cause coral bleaching, which has raised concerns among marine conservationists. As a result, some countries have banned or restricted the use of these chemicals in sunscreens.
But what can we do instead? Ian recommends opting for mineral-based sunscreens containing zinc oxide or titanium dioxide, which work by reflecting UV radiation rather than absorbing it. These alternatives are generally safer and just as effective.
Protecting our skin from the sun doesn’t have to be a gamble. With the right knowledge and choices, we can enjoy the outdoors while safeguarding our health.
Source: https://www.theguardian.com/science/audio/2025/aug/12/is-sunscreen-really-toxic-podcast