Produced by fibroblasts, elastin is an important protein that enables our skin to return to its original shape after it stretches or contracts. Elastin fibers are like little rubber bands in the connective tissue throughout our bodies. Eventually, the fibers lose their ability to snap back.
Through the years, there are many things that can take a toll on your skin, including the sun, bad habits, and pollution. Exposure to these elements can damage the elastin fibers in your skin, which causes the skin to sag and stretch.
Loose skin and tissue under the upper arm area due to damaged elastin is a common issue. Flabby upper arm skin may make you feel reluctant to wear sleeveless shirts and swimsuits. Factors that contribute to sagging underarm skin include aging, smoking, genetics, and weight loss.
When your weight fluctuates, it can break or weaken the elastin fibers in the dermis, which results in the loss of tensile strength. Therefore, the skin is unable to bounce back and regain its original shape, similarly to when a rubber brand is stretched beyond its limit. If you lose weight and simultaneously lose muscle mass, this leads to a loss of tone that causes the skin in the underarm area to appear flaccid.
Here are some tips for avoiding
and treating sagging underarm skin.