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New in UV Filter (page 7 of 12)
Jan 29, 2010 | 03:25 PM CST
By: Paul McCormick, PhD, Antaria Ltd.; Robert Flet…
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 | 03:20 PM CST
By: Craig Bonda and Anna Pavlovic, The HallStar Co…
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 29, 2009 | 02:50 PM CDT
By: Françoise Arnold MMP Sarl; Michel Merci…
The skin innately possesses metabolic pathways and receptors to protect against external assaults. Here, one protective component, 7-dehydrocholesterol or provitamin D, naturally present in the skin, is described, which serves as the precursor for active metabolites that influence the formation and maintenance of barrier function, the activation of antimicrobial peptides, photoprotective activities, and protection against senescence.
Sep 25, 2009 | 10:09 AM CDT
The UV filter is based on hydroxyphenyltriazine chemistry for UVA and UVB protection in beach and daily wear products.
Aug 28, 2009 | 03:10 PM CDT
By: Pierfrancesco Morganti, University of Naples I…
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 | 09:41 AM CDT
EMD Chemicals has launched an encapsulated butyl methoxydibenzoylmethane (avobenzone) for addition to the water phases of formulations.
May 15, 2009 | 10:14 AM CDT
The photostabilizer quenches the singlet excited states to slow down photodegradation.
May 07, 2009 | 10:26 AM CDT
Now SPFs of up to 28 can be achieved with significantly lower concentrations of active, leading to better foaming and lower production costs.
May 04, 2009 | 04:10 PM CDT
By: Timothy Gao, PhD, Jung-Mei Tien, Abhijit Biday…
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 02, 2008 | 09:29 AM CDT
Kemira Oyj has formed a joint venture with Rockwood Holdings Inc. to produce specialty titanium dioxide pigments.