Columbia Researchers Uncover Touch Sensory Mechanisms

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.

Researchers Identify Pathway to Regulate Telomeres

Apr 7, 2014Cosmetics & Toiletries editors

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.

Carotenoids for Dietary Photoprotection

Mar 20, 2014Maxwell Xiong, The Waterford School, Sandy, UT, USA; Howard I. Maibach, MD, University of California at San Francisco, CA, USA

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.

Researchers Dig Deeper Into Relationship Between Bacteria and Atopic Dermatitis

Mar 4, 2014

Researchers from the Drexel University College of Medicine have established a clearer relationship between Staphylococci bacteria and the conditions atopic dermatitis (AD) and eczema.

Hypersensitive Skin: Classification and Potential Risk from Cosmetic Formulations

Feb 21, 2014Nava Dayan, PhD, Nava Dayan LLC

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.

New Findings and the Impact of Infant Skin Microbiota on Product Development

Feb 14, 2014Georgios N. Stamatas, PhD; and Kimberly Capone, PhD, Johnson & Johnson

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.

Growth, Senescence, Canities, Bleaching and Anti-aging in Hair

Jan 24, 2014Robert J. Dorin, DO, American Board of Hair Restoration Surgery, and True & Dorin Medical Group, P.C., NYC

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.

The Latest in Whitening Agents

Jan 13, 2014Howard I. Maibach, MD; and Michal W.S. Ong

In recent years, new agents, especially from plants, have been discovered and extracted to test for their depigmenting effects in vitro and in vivo. This article reviews these most recent skin whitening agents of interest, whose efficacy, mechanism and safety have been tested.

The Effect of Glycerol on the Water-holding Capacity of Chemically Irritated Skin*

Jan 13, 2014Howard I. Maibach, MD, University of California School of Medicine; and Nicolas Atrux-Tallau, PhD, ESPCI ParisTech

Glycerol is one humectant commonly employed due to its high hygroscopic and hyperosmotic properties. It is used in cosmetics as a moisturizer and in pharmaceutical formulations as an active compound. Being naturally present in the skin, glycerol was quickly identified for its role in skin hydration, similar to natural moisturizing factors (NMF).

Corneocare and Comfort Science

Oct 1, 2013Katerina Steventon, PhD, FaceWorkshops

At the Skin Forum 2013 event in London, the seven pillars of “corneocare,” were introduced, which targeted: the epidermal tissue at the molecular, cellular and structural level; epidermal function; tactile experience; appearance and sensation. This is one of the first concepts in personal care to close the gap between consumer perception and a scientific approach.

New Research Highlights Role of Elastin in Stretch Mark Formation

Aug 28, 2013

Personal genetics company 23andMe has conducted a genetic study on striae distensae (stretch marks) to identify genetic markers for the skin imperfections and determine why some individuals are more susceptible.

Study finds UV Nail Lamps to Be Safe

Aug 28, 2013

Researchers from Rapid Precision Testing Laboratories have found that UV nail lamps are safe and to not cause cancer. After the lamps became popular in the last few years for curing non-chip gel nail polish, many began to question their safety.

Smoking and Premature Aging

Jul 1, 2013Maral Rahvar, MD, and Howard I. Maibach, University of California San Francisco

Multiple environmental factors are associated with facial aging; evidence suggests that smoking 20 cigarettes per day is equivalent in effect to almost 10 years of chronological aging. Therefore, lifestyle recommendations to stop or delay facial skin aging are also very useful in promoting public health.

Determining the Keratolytic Activities of Benzoyl Peroxide, Retinoic Acid and Salicylic Acid In vivo

Jul 1, 2013

Keratolysis is the separation or loosening of the stratum corneum (SC), and is part of the natural cycle of skin renewal and regeneration. Disordered keratolysis, resulting in skin overgrowth or excessive desquamation, is responsible for various skin disorders.