Recent in UV Filter (page 4 of 7)
Jun 15, 2010
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.
Jan 29, 2010 | Paul McCormick, PhD, Antaria Ltd.; Robert Fletcher, PhD, and Charles Jones, PhD, Dow Home and Personal Care
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.
Jan 29, 2010 | Craig Bonda and Anna Pavlovic, The HallStar Company; Kerry Hanson and Chris Bardeen, University of California
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.
Sep 25, 2009
The UV filter is based on hydroxyphenyltriazine chemistry for UVA and UVB protection in beach and daily wear products.
Aug 28, 2009 | Pierfrancesco Morganti, University of Naples II, China Medical University and Mavi Sud s.r.l.; Giuseppe Fabrizi, Eleonora Ruocco, Paola Del Ciotto, Paolo Palombo, Marco Palombo and Antonio Cardillo
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.
Aug 13, 2009
EMD Chemicals has launched an encapsulated butyl methoxydibenzoylmethane (avobenzone) for addition to the water phases of formulations.
May 7, 2009
Now SPFs of up to 28 can be achieved with significantly lower concentrations of active, leading to better foaming and lower production costs.
May 4, 2009 | Timothy Gao, PhD, Jung-Mei Tien, Abhijit Bidaye, Scott Cardinali and Jena Kinney, Croda Inc.
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.
Sep 2, 2008
Kemira Oyj has formed a joint venture with Rockwood Holdings Inc. to produce specialty titanium dioxide pigments.
Feb 5, 2008 | P. Morganti, Mavi Sud Srl; E. Ruocco, University of Naples Federico II; F. Guarneri, University of Messina; A. Cardillo, R&D ISCD; C. Pagliarello, IRCCS; and G. Fabrizi, University of Molise
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.
Feb 5, 2008 | Craig Bonda, The HallStar Company
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.
Dec 6, 2007
Scientists at Johns Hopkins have discovered that an extract of broccoli sprouts protects the skin against thel ultraviolet rays.