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Methods & Processes
New in Methods & Processes (page 4 of 17)
Aug 24, 2011 | 09:56 AM CDT
Meristem cells of Himalayan red rice were cultured and elicited to produce secondary metabolites. Through an in vitro assay, rejuvenation was shown at the epigenetic level of treated cells. An increased expression of dermatopontin in keratinocytes, besides being a novel finding, implies that ReGeniStem™ Red Rice may be able to firm the skin and improve the skin barrier function.
Aug 09, 2011 | 11:51 AM CDT
Researchers at Harvard’s School of Engineering and Applied Sciences (SEAS) have developed a device that can identify an unknown liquid.
Aug 01, 2011 | 02:07 PM CDT
By: Nava Dayan, PhD, and Albert Babik, Lipo Chemic…
This paper reviews the knowledge and nature of the harvest practices for the octocoral Pseudopterogorgia elisabethae. P. elisabethae extract has been used for nearly two decades in cosmetics and preparations for skin benefits, and a review of the harvest provides product developers with an interesting case study of the harvest of a marine resource.
Aug 01, 2011 | 01:40 PM CDT
By: Peter Tsolis and L. Grotzinger
Led by column editor Peter Tsolis of The Estée Lauder Companies, this recently added column in the Cosmetics & Toiletries magazine lineup covers some of the more common formulation challenges and suggests solutions for novice formulators as well as seasoned experts.
Jul 19, 2011 | 02:37 PM CDT
By: Th. Förster, B. Jackwerth, W. Pittermann, W. v…
This work studied the influence of emulsion type and structure on the penetration of vitamins as cosmetic active ingredients. An emulsion of the w/o type and two different o/w emulsions were compared with an oil solution as a standard. A systematic in vitro study of penetration into the stratum corneum and the living skin was performed with the isolated perfused bovide udder skin model. The results substantiate the influence of emulsion type and stucture on the degree of penetration of water-soluble and oil-soluble vitamins into the skin.
Jun 30, 2011 | 11:40 AM CDT
By: James Ziming Sun, PhD, Diversapack of Californ…
In this review, the authors examine studies relating to the solubility of BPO. The clinical trials discussed show that compared with suspended BPO, BPO solubilized by dimethyl isosorbide reduced P. acnes and decreased both inflammatory lesions/irritation and the emergence of antibiotic-resistant P. acnes strains. This reveals the importance of solubilizing BPO for improved efficacy and safety.
Jun 01, 2011 | 01:36 PM CDT
By: Mark Grace, Velocys Inc. and Larry Plonsker, C…
In the present article, microchannel emulsification is explored as a process method that precisely adds a dispersed phase into a continuous phase through an engineered dispersion plate. This approach is shown to produce emulsions with smaller droplets having tighter size distributions than conventional means, which leads to stable products with the limited need, if any, for surfactants.
May 25, 2011 | 10:37 AM CDT
During the World Congress of Dermatology, Procter & Gamble Beauty and Grooming is presenting new findings in acne, male grooming, dandruff and anti-aging based on a broader "omics"—i.e., genomics, proteomics and metabolomics, research tool.
May 02, 2011 | 02:04 PM CDT
By: Bob Bornfriend, Alberto Culver
This article aims to help novice formulators understand issues that arise from the scale-up of their recipes, and to remind experienced formulators of some of the less common pitfalls. It also focuses on the unique demands of process development for global implementation at multiple sites, specifically pertaining to the scale-up tasks for process engineers at multinational companies.
May 02, 2011 | 01:46 PM CDT
By: Kim S. Finnie, PhD; and Chris Barbé, PhD, Cera…
In this article, retinol encapsulated in organosilica microparticles (12–14% w/w) having an average particle size of 0.3 micron are shown in a 40-day test period to exhibit enhanced stability to oxidation when compared with similar commercial stabilized retinol products.