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Latest Findings From Hair, Skin, Color And Shaving At AAAS Annual Meeting
P&G Beauty & Grooming scientists presented research at the AAAS Annual
Meeting (Chicago, Feb. 12-16) that offers evidence of science's role in evolving
beauty and grooming product efficacy. This year's meeting theme observes the
200th anniversary of Charles Darwin's birth, affording a unique perspective for
examining the company's use of advanced science and technology to help
individuals feel and look their best. Five studies--with subjects ranging from
color optics to skin aging genomics to razor engineering--will be on display.
"The way people have managed their personal beauty and grooming routines
continues to evolve, and scientists at P&G Beauty & Grooming are constantly
driven to apply science insights to bring more advanced products to the market,"
said Steve Shiel, PhD, Associate Director, P&G Beauty & Grooming Science. "The
AAAS Annual Meeting provides a premier forum for us to share insights with
science peers and hear feedback that can lead to new hypothesis."
The following research summaries provide illustrations of the rigor brought to
bear on product innovation at P&G Beauty & Grooming.
More than Meets the Eye: The Science of Unique Skin Color and its Interaction
with Cosmetic Foundation, Presented by Karen Kalla
The optics of human skin are well understood, including how the skin's
chromophore layers (melanin, hemoglobin, and collagen) generate reflectance in
specific regions of the visible spectrum. However, how these phenomenon vary
across populations, impact skin defects (e.g. under eye circles, age spots) and
can be predicted through light absorption and scattering principles (Kubelka
Munk theory) are less well known. This poster outlines our combined
understanding of these areas, and sets forth the scientific process involved in
applying this knowledge to create better color foundation formulations to
eliminate the problems of pasty or orange look on skin.
Genomics of Skin Aging
Genomic Analysis of the Anti-oxidant Capacity of Aging Skin, Presented by
Rosemarie Osborne, PhD
Studies have established that environmental factors, such as UV light, trigger
skin damage and photo-aging. And while the benefits of antioxidants in
offsetting this damage have been documented, thorough understanding of skin's
anti-oxidant response element (ARE) on a genomic level are key to the next
generation of targeted prevention and reversal strategies. To uncover these
insights, researchers analyzed gene expression patterns in sun-exposed and
sun-protected old and young skin. The study results detail the genomic patterns
found, including a pathway which found older, exposed skin having a dysregulated
expression of ARE-related proteins, thus resulting in reduced defenses against
oxidative damage, as compared to younger skin.
Stratum Corneum Lipid Metabolism Pathways Associated with Intrinsic and
Extrinsic Aging, Presented by Rosemarie Osborne, PhD
The same genomic study described above found new insights on the stratum corneum,
the skin's barrier layer responsible for protecting against environmental
assaults. Through a separate analysis, P&G Beauty & Grooming researchers gleaned
vital genomic understandings of the respective roles of intrinsic and extrinsic
aging in affecting the stratum corneum's ability to perform its core function.
The same study analyzed this affect while adding the variable of a topical
cosmetic compound, using human skin equivalents. The results demonstrated that
the compound increased the expression of genes involved in lipid biosynthesis
and metabolism of the stratum corneum, leading to new appreciation of its
potential in improving barrier maintenance and repair.
Liquid Crystals for Surface Modifications of Colored Hair, Presented by Steve
Conventional oxidative hair color processes, such as bleaching, change the
structure of hair fibers, removing more than 70 percent of the natural,
hydrophobic protective layer after even a single coloring. This structural
change inhibits hair's interaction with traditional, hydrophobic conditioning
ingredients, such as dimethicone, leaving bleached hair in an unprotected state.
To address this damage, P&G Beauty & Grooming scientists studied the effect of
liquid crystal technology. Liquid crystals were found to significantly increase
the hydrophobicity of the hair surface, enabling bleached hair to be conditioned
with dimethicone. A description of this proprietary technology and its benefits
to hair structure is presented.
Innovations in Modern Blade and Razor Technology, Presented by Pamela Zupkosky
The modern five-blade razor is the product of years of research and
technological advances. A five-blade razor is not a new idea, but it has taken
almost 90 years to perfect the technology. Like all multi-blade razors, the
five-blade razor improves the closeness of the shave through the "hysteresis
effect," which results from a slight hair extension out of the follicle as the
first blade engages and from the hair being cut further down the hair shaft by
the subsequent blades. But the five-blade razor goes far beyond other
multi-blade razors. P&G Beauty & Grooming scientists had to carefully optimize
the inter-blade span and blade edge technology to ensure that closeness is
complemented with excellent shaving comfort and rinsing properties.
Article adapted by Medical News Today from original press release.
About P&G Beauty & Grooming
P&G Beauty & Grooming has more than 1,800 scientists and technical employees
working at 9 global technical centers with an unparalleled commitment to
technology development. Company scientific efforts have resulted in over 10,000
active beauty and grooming patents. This allows P&G to develop products uniquely
suited for different types of hair and skin, and tailored to different cultures
Source: Lauren Harris
Spectrum Science Public Relations
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