Stretch marks, or striae are inherently linear atrophic scars, which are located mainly in the skin of the breast, stomach, thighs and buttocks. Why do I get stretch marks? Firmness and elasticity determined by the kind of fibrous "skeleton" (a combination of collagen and elastin fibers, and intercellular substance), which gives the skin a chance to stretch, to counteract the external factors to keep its beautiful appearance. A special arrangement of fibers creates a smooth, normal skin texture. Unfortunately, often the fibrous structure of the skin is broken (broken or deformed fibers, or violated their synthesis). Causes a lot, but the essence is: the gap existing collagen fibers, or a sharp decline in collagen synthesis. Collagen fibers form the skeleton of our skin and are responsible for its strength and elasticity (collagen accounts for 90% of connective tissue, and its share in the dry matter of the skin is 72%). To date, identified 20 different types of collagen, but the main structure of the skin are only two type 1 and type 3. The predominance of one type or another depends on predisposition to the formation of skin stretch marks, and this predisposition is transmitted genetically.
Two stages of stretch marks: the stage of pink stretch marks (striae rubrae) and scarring stage (striae albae). In the first stage in the process of Education can be influenced. In the second – we have little effect on these aesthetic parameters such as depth and size of stretch marks, skin elasticity, as well as the subjective sensation of velvety softness and skin. Normally, in deeper layers of skin are constant processes of decay of the old and new collagen synthesis. The formation of young collagen is influenced by many factors: a balanced diet (with a lack of protein foods decreased synthesis collagen), the effect of environment (climate, ultraviolet radiation), habits (alcohol, smoking), lack of vitamin C.