Skin loses its firmness and starts to sag when fat, collagen, and elastin break down. With natural ageing, skin produces less supportive fibres – collagen (which gives our skin firmness and strength) and elastin (which, as its name suggests, gives our skin its elasticity) – and the collagen fibres loosen and become less organised.
A wrinkle is basically a depression or crease in the surface of skin. Different types of wrinkles:
• Fine lines are shallow lines that appear first deep lines. Some of those fine lines become deeper later. A common area for fine lines is around the eyes.
• Deep lines are very visible and tend to be long and straight. Examples: nasolabial folds, forehead lines, glabellar lines.
• Folds are the result of overlapping skin. This appears later in life when skin is much looser and sags.