What properties are important for molecules used as sunscreens?

Sunscreens help protect against the sun's damaging effects. Sunscreens are topical agents which can be used to block the sun's UV rays and can be used to prevent photoaging.

Sunscreens can block the UV rays or absorb them before they reach the skin.

hi, there are sunscreens that are Chemical, and sunscreens that are Physical:

Chemical sunscreens absorb UV rays:

Octylmethylcinnamate, avobenzone, PARSOL1789, PABA, Mexoryl, Benzophone, oxybenzone, octocrylene, homosalte

Physical Sunscreens reflect UV rays:

zinc oxide, titanium dioxide

Mineral Physical Sunscreens: Particularly Zinc and Titanium Dioxide. They offer UVA and UVB spectrum coverage, and do not pose risks to your health like chemical sunscreens.

No, not all sunscreens offer the same level of protection. Different sunscreens have varying SPF (Sun Protection Factor) levels and protection against different types of UV rays (UVA and UVB). It's important to choose a sunscreen with an SPF of 30 or higher and broad-spectrum protection for optimal sun protection.