Firm skin is taut and springy, bouncing back into place even after you stretch and pull at it. It's a sign of healthy, youthful skin, and it's characterized by good elasticity.
You can test your own skin's firmness by gently pinching a section of skin on your face or neck. If it quickly springs back to its original shape, that's a good indication of healthy skin.
Unfortunately, skin firmness naturally declines with age. This is due to a decrease in collagen and elastin, two proteins that are essential for skin elasticity and support.
