Wrinkles Form Through Skin's Mechanical Properties

Scientists at Binghamton University have discovered a new explanation for wrinkles, revealing that older skin stretches and contracts, causing buckling and wrinkle formation. This experimental evidence dispels previous theories that attributed wrinkles to genetics, solar photodamage, and other factors. By stretching and contracting human skin samples, researchers found that wrinkles form when skin stretches in one direction and contracts in the other, leading to buckling.

Key Takeaways:

• Wrinkles form through the skin's mechanical properties, specifically through stretching and contraction.
• Older skin is more prone to wrinkles due to increased contraction.
• The skin's dermal layer undergoes changes in mechanical properties and structure with age.
• The cosmetics industry can benefit from this research by identifying effective anti-aging products.
• Premature aging from chronic sun exposure can have the same effect on skin as chronological aging.
• Scientists have discovered a physical mechanism behind aging, providing valuable insights for the development of anti-aging treatments.
• The research team, including Associate Professor of Biomedical Engineering Guy German, aimed to understand the physical mechanism behind aging and eliminate misconceptions about skin wrinkles.
• Alejandro Wiltshire, Abraham Ittycheri, and Guy German conducted the study using a low-force tensometer to stretch tiny strips of skin from people ages 16 through 91.
• Silly Putty was used as an analogy to illustrate the skin's behavior when stretched and contracted.
• The research highlighted the importance of understanding skin mechanics to develop effective anti-aging treatments.
• The study's findings were published in the Journal of the Mechanical Behavior of Biomedical Materials.

Statistics:

• The study examined human skin samples from people ages 16 through 91.
• The research team used a low-force tensometer to stretch tiny strips of skin.
• 1000 different anti-aging products are available on the market, making it challenging to separate fact from fiction.
• The study's findings showed that skin wrinkles occur when it stretches in one direction and contracts in the other.
• Premature aging from chronic sun exposure can have the same effect on skin as chronological aging.

Sources:

• "Elucidating the Mechanistic Process of Age Induced Human Skin Wrinkling" (Journal of the Mechanical Behavior of Biomedical Materials)
• Binghamton University (SUNY)