This common ingredient also works to aid sunscreen in penetrating your skin, but once absorbed, homosalate builds up in the body quicker than it can be detoxified through the liver. (wellnessnova.com)
Coppertone Water Babies Sunscreen Lotion SPF 50, for example, lists five active ingredients, including Avobenzone (UVA only), Homosalate (UVB only), Octisalate (UVB only), Octocrylene (UVB only), and Oxybenzone (UVA and UVB). (verywellfamily.com)
Let's start with the active stuff, used for broad - spectrum blockage: UVA and UVB rays won't be able to bust through the avobenzone, homosalate, octisalate or octocrylene. (geekwrapped.com)