Face Dance Stroke Course Introduction As we age, the body gradually loses collagen and water, resulting in aging and thinning of the skin, a sharp decrease in elastic fibers and atrophy of subcutaneous fat, which, under the action of gravity, will elongate the skin and deepen the formation of decreases. There are three different reasons for the formation of decrescent lines: sunken nasal base, unfilled midface, craters on both sides of the nose and decrescent lines; loose and sagging skin, resulting in the accumulation of decrescent lines; and expression-rich decrescent lines. Expected effect Improvement of nasal base depression Strengthen the muscle development on both sides of the nose Lighten the lines