The researchers found that the swelling and absorption of water occurs in the outermost layer of skin, the epidermis, which is made of dead cells that are stacked in layers like bricks.
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Boston, MA (PRWEB) March 03, 2014
Agein.com, the Internet’s premier anti-aging web site focusing on anti-aging tips, news, and advice from some of the foremost experts in the industry, is weighing in on a recently published academic study showing proteins are responsible for the skin elasticity in fingers and toes.
Research from two German scientists has uncovered the secret of the skin's elasticity; and they say it comes down to expandable lattices. When the outer layer of skin on fingers and toes absorbs water, it swells, forming ridges, but quickly returns to its natural state when dry. (Source: Evans, M.E. and Roth, R., “Shaping the Skin: The Interplay of Mesoscale Geometry and Corneocyte Swelling,” APS Physics web site, January 24, 2014; http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.038102.)
“The researchers found that the swelling and absorption of water occurs in the outermost layer of skin, the epidermis, which is made of dead cells that are stacked in layers like bricks,” says Dr. Kevin J. McLaughlin, Agein.com’s anti-aging specialist. “The cells are filled with interlocking strands of the protein keratin, the structure of which explains how skin cells swell and shrink. It is the interplay of these forces that ensures the skin can only absorb a certain amount of water.”
While further research is needed to fully understand how the geometric structure of keratin protein filaments helps the skin respond to moisture, Dr. McLaughlin notes that it is an important first step in helping treat a number of skin disorders. It could also help scientists create materials that mimic the skin’s remarkable properties.
“Anti-aging experts have long known that the protein keratin helps maintain skin hydration by reducing moisture loss. But unfortunately, aging negatively influences keratin levels,” he adds. “That said, there are other proteins that have been shown to both moisturize the skin and bring back elasticity.”
When considering a daily moisturizer, Dr. McLaughlin suggests looking for products that include proteins such as Matrixyl and Argireline. Matrixyl is a peptide, or protein fragment, that stimulates the production of collagen and has been shown to reduce the appearance of deep wrinkles by 45% and improve skin tone by nearly 20%. Argireline is another peptide that has been clinically shown to reduce the appearance of expression lines by 32%. (Sources: “Matrikines and Rejuvenation,” rbclife.info, http://www.rbclife.info/pdfs/c7/matrixyl3000.pdf, last accessed February 28, 2014; “Argireline,” Botanical-Link.com, 2003; http://www.botanical-link.com/Argireline.pdf; Blanes-Mira, C., et al., “A synthetic hexapeptide (Argireline) with antiwrinkle activity,” International Journal of Cosmetic Science, 2002.24, 303–310; http://www.biologicsolutions.com/content/179632/clinicalstudy.pdf; “The First Peptide for Expression Wrinkles,” Nature’s Beauty Cosmetics web site; http://www.naturesbeautycosmetics.com/studies/argireline.pdf, last accessed February 28, 2014.)
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