Hardware methods of rejuvenation - how does it work?

One cannot fail to notice the growing trend in the popularity of hardware rejuvenation methods. Manufacturers of energy-based devices EBD (Energy Based Devices) promise us rejuvenation in the form of lifting the skin, improving its turgor and smoothing wrinkles. And if you delve into the essence of the process of interaction of such devices with the fabric, you can find that the basis is the heating of the skin, which causes (depending on the temperature) different processes with different consequences.

Changes in the shape and density of the soft tissues of the face are based on changes in the connective tissue. It plays a supporting role in all organs, making up 60-90% of their mass, forming a supporting framework (stroma) and outer coverings (dermis). Fascia, muscle sheaths, fat, dermis, ligaments, tendons, bones, cartilage, joints, bursa, sarcolemma and perimysium of muscle fibers, extracellular matrix and much more are all connective tissue.

The main cells of connective tissue are fibroblasts. They synthesize collagen, elastin and other components of the intercellular substance. Collagen constitutes from 25 to 33% of the proteins of the whole body and up to 70% of the proteins of the dermal layer of the skin. Collagen and elastin in the dermis form a three-dimensional network that provides elasticity and firmness.

Normally, collagen is constantly synthesized by connective tissue cells and destroyed (enzymatically), but the intensity of its exchange is relatively low. At the end of the body's growth, the processes of protein breakdown from external and internal factors begin to exceed the processes of their synthesis. Thus, the synthesis of elastin decreases already at the age of 14, and collagen - at the age of 21-25, after which the skin is renewed extremely slowly and the skin ages. The half-life of elastin in the dermis is 75 years, and that of collagen is 15 years.

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