Stretch marks can be defined simply as a tear in the dermis manifested in the form of unsightly, white or red stripes. They area result of a rupture of collagen and elastin fibers, responsible for the proper structure of the skin. If the fibers are pulled too tight in a short time, they may break. A defect is created – a “hole” inside the tissue, which is red-purple at first (newly formed stretch marks), then changes its color to white-pearl or plain skin color (old stretch marks).
Most often stretch marks are a consequence of considerable weight fluctuations in pregnant women, adolescents during periods of intense growth, and people who train intensively developing their muscle tissue.
Stretch marks’ formation is influenced not only by the degree of skin stretching, but also its stiffness (depending on individual predispositions). Tensile force causing stretch marks is different for each of us. In some people, stretch marks may appear with even very little skin stretch. In other cases, more elastic skin will withstand very intense stretching and will not break. Consequently, no stretch marks will appear on it.
The weakening of collagen and elastin fibers constitute an other factor favoring the formation of stretch marks. This can happen as a result of hormonal disorders, mainly due to excessive production of cortisol (“stress hormone”) and, importantly, as a result of eating disorders.
Regenerating treatments which cause the formation of new collagen should be used for stretch marks. However,in order to eliminate stretch marks, one must simultaneously act very strongly and deeply in the tissue, which until recently was mutually exclusive.