Organic UV Filter
Organic UV Filter — a carbon-based sunscreen ingredient that protects skin primarily by absorbing ultraviolet radiation and converting it into small amounts of heat. Often called chemical filters, this group includes molecules such as avobenzone and octocrylene, and different filters absorb different portions of the UV spectrum.
Key points
- Organic filters work mainly by absorbing UV energy and releasing it as negligible heat rather than reflecting it.
- Examples include avobenzone, octinoxate, octocrylene, and newer filters like bemotrizinol used in some regions.
- Individual organic filters cover specific UV wavelengths, so several are often combined for broad-spectrum coverage.
- Some organic filters can degrade in sunlight, which is why formulations pair them with stabilizers or photostable partners.
Frequently asked
Are organic UV filters the same as chemical sunscreens?
Yes, organic UV filter is the more precise term for what are commonly called chemical sunscreens, referring to carbon-based molecules that absorb UV light.
Why do sunscreens combine multiple organic filters?
Each filter absorbs only part of the UV spectrum, so combining several helps achieve broad-spectrum coverage and can improve overall photostability.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
