>>5282731From a 2 second google:
Oxybenzone: This ingredient is one of the most commonly-used sunscreen chemicals. Oxybenzone is linked to endocrine disruption, organ system toxicity, contact allergies, and photoallergies, meaning exposure to light is required to generate an allergic response. This ingredient, sometimes called benzophenone-3, is not to be confused with benzophenone, another common sunscreen ingredient.
Oxybenzone is also harmful to aquatic life. This chemical is so harmful that in 2018, Hawaii banned it to protect coral reefs.
Octinoxate: A commonly used UV filter that protects from UVB rays, but not UVA sun rays. On packaging, it may be listed as OMC, methoxy-cinnamate or ethylhexyl methoxy-cinnamate.
Octinoxate is linked to endocrine disruption by an abundance of data, as well as to reproductive toxicity. Researchers have detected this chemical in breast milk, urine, and blood. Like oxybenzone, this ingredient was targeted in Hawaii’s ban, as it harms coral reefs.
Homosalate: A common sunscreen ingredient that absorbs UVB rays to prevent direct skin exposure. Homosalate absorbs UVB rays only.
This ingredient is linked to hormone disruption and it may also enhance the absorption of pesticides, including bug sprays. It may also enhance the penetration of other harmful ingredients found within the formulation. This ingredient is persistent in the environment, meaning it doesn’t break down readily.
Nanoparticles: Nanoparticles can be 1000 times smaller than the width of a human hair. In sunscreen, they’re most commonly found as nanoparticle titanium dioxide of zinc oxide.
Nanoparticles have not been properly assessed for their potential effects on human or environmental health. Researchers don’t yet understand the impact they could have. But because of their infinitesimally small size, nanoparticles may be more chemically reactive and therefore more bioavailable, meaning the particles are fast-tracked into the body.
