As the human body ages, there is a loss of subcutaneous fat and our production of collagen slows down and eventually stops. That, combined with sun damage, leads to loss of volume in crucial areas of our face that made us look younger before (like the cheekbones, lips etc.)
Combined with that, using our facial muscles to laugh, smile of frown, leads to fine lines and wrinkles.
Botox and Fillers are injectables that has to be administered by a certified medical practitioner. It can turn back the clock to give you back your youthful appearance.