Recent in UV Filter (page 4 of 4)

Comparatively Speaking: UVA vs. UVB Protection

Tony O’Lenick asks industry expert Dennis Lott of Florida Suncare Testing Inc. to distinguish between UVA and UVB radiation to explain how organic UV filters can be formulated into sunscreens to help protect against these rays.

English Ivy Nanoparticles Found to Protect Skin from UV Radiation

Researchers at the University of Tennessee report that English ivy nanoparticles may protect skin from UV radition better than other metal-based nanoparticles such as titanium dioxide (TiO2).

Hydroxyapatite UV Filter

Kalichem Italia S.r.l. has introduced a physical sunscreen that imparts a soft focus antiaging effect without a white appearance on skin. The material is based on hydroxyapatite, one of the basic constituents of bones and teeth.

Micron-sized Zinc Oxide Dispersion for Transparent High SPF Formula

Regulatory bodies require quantifiable, photostable UVA protection for sunscreens and while zinc oxide provides an effective option, historically, its white appearance on skin has limited its acceptance. Therefore, in the present article the authors explore a micron-sized zinc oxide dispersion technology to enable the formulation of transparent yet full spectrum sunscreen formulas.

Singlet Quenching Proves Faster is Better for Photostability

The faster a photostabilizer works, the fewer opportunities for destructive chemical reactions. Here, the author describes a new photostabilizer, ethylhexyl methoxycrylene, which acts by quenching the singlet excited state of UV filters. The data shows how this material sets a new standard for the photostabilization of avobenzone, even in the presence of octyl methoxycinnamate.

Broad-spectrum Hydroxyphenyltriazine Filter for EU

The UV filter is based on hydroxyphenyltriazine chemistry for UVA and UVB protection in beach and daily wear products.

Chitin Nanofibrils for Improved Photoprotection

Chitin nanofibrils (CN) are capable of interacting with cosmetic actives by binding to the stratum corneum, thus influencing their thermodynamic activity. Here, the authors test various sunscreen samples and determine that the addition of CN provides an interesting boost to the photoprotective activity of sunscreens.

Encapsulated Butyl Methoxydibenzoylmethane for Water Phases

EMD Chemicals has launched an encapsulated butyl methoxydibenzoylmethane (avobenzone) for addition to the water phases of formulations.

Can't find what you're looking for? Try searching, or looking through past issues.