Collagen and elastin are proteins present in the body that ensure the skin's firmness, suppleness, cohesion, elasticity and hydration. From the age of 25, their natural production gradually slows down. The skin's surface becomes thinner and looser, and recovers its shape less and less after stretching. This weakening favors the appearance of fine lines, which later turn into wrinkles.
The conditions to which the skin is exposed have a major influence on the formation of wrinkles over time. A lack of hydration, as well as repeated unprotected exposure to the sun, can have devastating effects on premature skin aging. Smoking, lack of sleep and a diet low in antioxidants and essential fatty acids have also been shown to greatly accelerate the formation of fine lines.
Certain factors at birth can have an advantage or disadvantage with regard to the appearance of wrinkles. People with darker skin, for example, are less affected thanks to their high melanin content, which protects them from ultraviolet rays. Skin thickness is also an important factor: the thicker the skin, the less it will be affected by the thinning caused by aging.
As their name suggests, expression lines are primarily attributable to facial movements repeated every day, such as smiling and squinting. As the skin ages, the resulting temporary folds fade less and less, until they become permanent.
Limit sun exposure by wearing clothing that covers the skin, and apply sunscreen before spending time outdoors, summer and winter alike. Choose broad-spectrum mineral sunscreens with an SPF of at least 30.
Regular physical activity reduces cortisol levels and promotes better production of collagen, an essential protein for healthy, beautiful skin.
Exfoliate regularly to help oxygenate the skin. Use moisturizing and anti-wrinkle products adapted to the skin's nature and needs.
Avoid smoking to avoid exposing yourself to the premature aging of the skin caused by smoking.
Adopt a healthy diet, low in refined sugars and rich in antioxidants. Choose eggs, berries and tea - which capture the free radicals responsible for accelerated skin aging; foods rich in omega-3s such as oily fish and olive oil - which strengthen cell membranes; and essential amino acids (meat, soy, fish) - which contribute to skin repair.
