What makes a person’s face look younger or older involves a number of variables,from skin texture, tone, and color to wrinkles,loss of volume, and sagging. The final of those—sagging—happens because collagen, and the structural support of your skin,diminishes over time. Collagen loss also contributes mightily toward volume loss and wrinkle formation; the very best way to stay youthful-looking is not to lose it in the first situation, says New York dermatologist
Source: goop.com