This fatty layer protects and cushions muscles and bones and regulates body temperature. As you age, your hypodermis decreases in size, and your skin starts to sag.
WHAT WORKS BEST HERE:
Since skincare doesn’t have the ability to reach this depth of the skin, modifying certain habits and making lifestyle changes can help to protect and slow down the aging process at this level instead, and will act as a supplement to topical solutions (i.e. improve diet, reduce use of tobacco products, avoid long exposure to sunlight).