The main causes of wrinkles:
#1 Decreased oil production in skin:
As we age, the skin begins to be more dense and less elastic. As the skin begins to lower its natural oil production, your skin can get dryer and less plump. Dry skin & aging generally lead to what is called “gray cells” which are skin cells that get stuck together and are not as flexible or hydrated as they were during youth. This is why an oil based moisturizer is truly the most important skin care product you will ever use.
#2 Ultraviolet (UV) rays can cause the skin to wrinkle.
UV exposure speeds up the aging process of the body. Exposure to UV rays breaks down the connective tissue of the skin, collagen, and elastin fibers which are found in the deeper layers of the skin. Without these fibers and collagen, the skin begins to lose flexibility and strength. As a result, the skin begins to wrinkle and sag prematurely.
Smoking can lead to fine line wrinkles, especially mouth wrinkles, frown lines, eye wrinkles, crows feet, chin wrinkles, forehead lines and forehead wrinkles. Even if you've smoked for a long time, it is not too late to quit, and let your body heal itself.