Recent in Biology (page 4 of 14)
Apr 21, 2014
Techniques developed in the field of molecular biology are currently being used to screen cosmeceutical ingredients for skin and hair care applications. New findings are published on a daily basis, providing insight with respect to future innovations for skin and hair health and appearance. Several relevant developments are reviewed here.
Apr 21, 2014
Fatty acid bile acid conjugates (FABACs) have been found to affect skin by enhancing ATP-binding cassette (ABCA1) cholesterol transporter and competitively inhibiting stearoyl-CoA desaturase (SCD1) enzyme. Based on the mechanisms involved, detailed here, the authors developed a new FABAC and tested it in vitro. Results suggest its potential as an anti-aging and anti-acne active.
Apr 15, 2014
A study published in Nature highlights how a team of Columbia University Medical Center researchers have uncovered the mechanisms behind touch; i.e., how humans feel details and textures.
Apr 14, 2014
Anti-aging hair care products address concerns such as thinning, coloring, breakage and drying. At the Cosmetics & Toiletries Summit, an entire hair research track will feature speakers Popescu, Davis, Kazin and Westgate on new biological and chemical considerations for this growing market.
Apr 8, 2014
Cancer researchers at the Salk Institute for Biological Studies in La Jolla, California, have identified a mechanism involved in the lengthening of telomeres; cosmetic researchers often look to this field for novel answers to skin aging.
Mar 20, 2014
Sun exposure leads to the production of free radicals in skin and to damage to elastin and collagen, resulting in premature aging. Studies of consuming carotenoid-rich fruits and vegetables have shown lower incidences of skin pathology. Carotenoids are among the most efficient natural scavengers of free radicals and may be used as oral sun protection, as is discussed here.
Feb 24, 2014
Recent studies demonstrate that the skin microbiome of infants actively changes during the first year of life, along with evolutions in skin structure, biochemical composition and function. These dynamics in the development of a healthy skin microbiome must be taken into consideration when designing products for baby skin care.
Feb 21, 2014
Considering the potential for reactions between cosmetics and hypersensitive skin, the present article will focus on this skin type; first by outlining mechanisms of type I and IV hypersensitization, then by focusing on type I immunogenic vs. non-immunogenic urticaria. Potential urticariogens in cosmetics are considered, and suggestions for future direction are given.
Jan 24, 2014
The continued use of hair bleaches and dyes to combat the onset of gray hair creates a greater demand for hair products that deliver the desired effect while facilitating repair. Molecular biology promises new strategies in combating the aging process of hair cells, with the paradigm shift toward understanding the living component of the hair follicle.
A Dermatological View--Moisturizer Efficacy: Evidence on Preventing and Treating Irritant Dermatitis
Jan 2, 2014
As an update to a previous overview by Zhai and Maibach, publications from 1992 to 2006 were reviewed quantitatively to examine moisturizer effectiveness. Pub Med, Science Citation Index and Embase were searched for: moisturizer, irritant dermatitis, prevention and treatment. Results indicated the extension of the work summarized justifies priority.
Nov 14, 2013
In cosmetics, parabens are widely used due to their low cost and efficacy. In recent years, however, some reports have claimed that these materials exhibit estrogenic activity, which has led to attempts to replace them in formulations. This article reviews penetration studies of parabens spanning the past 20 years to determine whether they pose a risk to human health.
Nov 13, 2013
As is described here, moisturizers can influence the properties and structure of corneocytes by influencing the SC and consequently, the skin water barrier function. This hydrative influence of moisturizers could be beneficial as well as destructive toward skin barrier function.