Medical Spa MD is a community of 28,000+ plastic surgeons, dermatologists, & aesthetic physicians practicing cosmetic medicine worldwide. FREE Medical Spa Deals for Clinicians

About   |   Advertise   |   Press   |   Contact

2nd MD - Boarded US physicians work from anywhere.
Medical Justice
Relentlessly protecting physicians from frivolous lawsuits.

More control of your income, career, and lifestyle as a physician.

Medical Spa MD is a world-wide physician community for clinicians in skin clinics, laser centers and medspas with thousands of physician members around the world. By using this site you agree to our terms of service and fine print.

« Storytelling As A Medical Spa Marketing & Sales Tool | Main | Lifestyle Lift Abruptly Shuts Down »

Can Understanding How Skin Resists Tearing Improve Cosmetic Procedures?

A recent discovery of how skin resists tearing has been recorded in the Berkeley National Laboratory.

dermatology skinThis new discovery in the mechanics of resistance to tearing can influence future cosmetic procedures used to reduce the look of aging and more. Scientists used X-ray beams to discover the action of collagen during stressed situations.

Scientists from the U.S. Department of Energy and the University of California San Diego discovered the behavior of collagen in the dermis determines the tear resistance properties of skin. While skin has been studied since 1831, the resistance to tears was not well understood. Co-leaders of the study and authors of the corresponding paper are Robert Ritchie of Berkeley Lab's Material Science Division, Marc Myers of UC San Diego. Their co-authors are Wen Yang, Vincent Sherman, Bernd Gludovatz, Eric Schaible, and Polite Stewart.

"Our study is the first to model and directly observe in real time the micro-scale behavior of the collagen fibrils associated with the skin's remarkable tear resistance," Ritchie says.

The scientists established that skin is not subject to the same fractures as bone or tooth dentin. These mineralized collagen fibers will collapse or fracture with enough stress after initial tearing. Collagen fibrils in the dermis lie in a haphazard manner which did not immediately point to the reason for resistance. Stress to an area triggers a response which rearranges the fibrils into highly structured arrangements.

"The rotation mechanisms recruit collagen fibrils into alignment with the tension axis at which they are maximally strong or can accommodate shape change," says Meyers. "Straightening and stretching allow the uptake of strain without much stress increase, and sliding allows more energy dissipation during inelastic deformation. This reorganization of the fibrils is responsible for blunting the stress at the tips of tears and notches."  Marc A. Myers,  co-Author 'On the tear resistance of skin', Nature Communications 2015.

Using this understanding of skin mechanics, new methods can be developed to improve current cosmetic applications and inventing new techniques. Anti-aging procedures could see the addition of new tools to improve the reaction of collagen fibrils to stress from gravity. Future methods of increasing viability of existing collagen can reduce the appearance of scars in older patients or those with compromised skin flexibility.


DOE/Lawrence Berkeley National Laboratory. "Skin tough: Why skin is resistant to tearing." ScienceDaily. ScienceDaily, 31 March 2015. link

On the tear resistance of skin (Nature Communications) link

Reader Comments (1)

Laser hair removal is not for everyone, as not many people can undergo the procedure just yet. The devices needed to perform the treatment are not that advanced just yet. If someone is considering taking the treatment maybe they should do some research on the subject matter.

PostPost a New Comment

Enter your information below to add a new comment.
Author Email (optional):
Author URL (optional):
Some HTML allowed: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <code> <em> <i> <strike> <strong>

Join Medical Spa MD

Medical Spa MD

A community of dermatologists, plastic surgeons, laser clinics, & skin clinics world wide.

Medical Spa MD is a world-wide community of physicians and clinicians practicing cosmetic medicine. Please read our Terms of Service, Advertising Terms and Privacy Policy.

Copyright © 2011. All rights reserved.