What are the differences between wrinkles and expression lines?
Expression lines are a type of wrinkles; there are two common types of wrinkles including:
What causes expression lines?
Expression lines are mainly caused by the repetition of muscles contraction, but other factors can intervene in their appearance.
Internal factors
Internal factors can bring the appearance of expression lines out.
Genetic predisposition
Because of genetic predispositions, some people are more likely to develop wrinkles than others.
Repeated facial movements
Repeated contraction of the muscles in the face pulls on the skin causing it to fold and crease. Combined with the decrease in collagen and elastin production, these creases stay visible even when the muscles are not contracted. “If you make a facial expression, you contract the underlying muscles. If you repeatedly contract the same muscles for many years, these lines become permanent” explains the AAD.
Lifestyle stressors
Other factors than genetics and facial expressions can contribute to the development of expression lines, like certain lifestyle factors.
Stress
Stress has a negative impact on the skin as it impacts the production of collagen and creates free radicals that damage skin cells and speed up the aging process. It is one of the main causes of premature aging.
Dehydration
When the skin is dehydrated, it can become vulnerable as its protective barrier cannot resist external aggression. Proper hydration improves the skin health and is crucial for maintaining the skin’s elasticity. This elasticity is what helps keep the skin smooth and less prone to developing wrinkles.
Diet
An unhealthy diet impacts the barrier functions of the skin and contributes to skin issues. Favor foods containing low antioxidants, vitamins and healthy fats to maintain your skin hydrated and protected.
Lack of sleep
Sleep plays a crucial role in skin regeneration. Indeed, while you sleep, your skin enters a phase of intense repair to regenerate, strengthen its barrier, and repair itself. A lack of sleep will impact the skin’s ability to protect itself.
External aggressors
External factors can increase the likelihood of expression lines.
Sun exposure
Sun exposure is very harmful to the skin as it damages cells and accelerates the breakdown of collagen and elastin. With a bad quality and quantity of collagen and elastin, the skin loses its elasticity leading to wrinkles.
Smoking
As sun exposure, smoking is another enemy for the skin as it damages its collagen and elastin natural production.
Pollution
Air pollution and exposure to pollutants create oxidative stress and promote skin aging and inflammation. Pollution is responsible for skin barrier disruption contributing to the appearance of wrinkles.
Where do we get expression lines?
There are 5 kinds of expression lines linked to a particular facial muscle.