Recent in UV Filter (page 4 of 6)

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.

Aquea Improves SPF Imparted in Wash On Technology

Now SPFs of up to 28 can be achieved with significantly lower concentrations of active, leading to better foaming and lower production costs.

A Diester to Protect Hair from Color Fade and Sun Damage

A new broad-spectrum UV filter to protect hair from color fading and integrity damage, quaternium-95 (and) propanediol, has been developed for rinse-off formulations. Shampoos and conditioners containing this material protected dyed hair against surface tryptophan degradation and tensile strength reduction.

Kemira and Rockwood Collaborate for TiO2

Kemira Oyj has formed a joint venture with Rockwood Holdings Inc. to produce specialty titanium dioxide pigments.

A Sunscreen Formulation for Acne-prone Skin

This article describes the study of a topical sunscreen formulation that contains titanium dioxide and ethylhexyl methoxycinnamate for UV protection, and phosphatidylcholine and hydrosoluble azelaic acid for acne control.

Research Pathways to Photostable Sunscreens

This article provides a visual depiction of pathways that UV filters undergo when exposed to solar radiation; such pathways often lead to photo-instability. A fluorescence technique is described that has led the author to identify compounds that preserve photostability in a novel manner­— by quenching the UV filter’s singlet excited state.

Broccoli Sprout Extract May Protect Against UV

Scientists at Johns Hopkins have discovered that an extract of broccoli sprouts protects the skin against thel ultraviolet rays.

Ferulic Soy Glycerides for Personal Care Products

iSoy Technologies has created ferulic soy glycerides (FSG), an active ingredient derived from soy oil and ferulic acid.