Skin rejuvenation is a natural process. Everyone experiences it over time. Using the right techniques and products will accelerate skin rejuvenation. The effects of aging will be reduced. In this section, we will discuss the characteristics of aging skin and new methods for its rejuvenation. Characteristics of Aging Skin Decreased Collagen and Elastin: These proteins maintain the structure and flexibility of the skin, and their reduction leads to wrinkles. Dry Skin: Reduced oil production causes dry and rough skin. Age Spots: Dark spots and discoloration caused by sun damage or aging. Sagging and Volume Loss: Over time, the skin loses its elasticity and the fat beneath the skin decreases. Finds.