WHAT CAUSES FINE LINES?
With over exposure to UV rays and pollution, collagen and elastin in the skin may become damaged which causes the skin to gradually lose its firmness and elasticity. As this happens, fine lines can form that may eventually turn into deep-set lines and wrinkles.
As skin ages, the fibroblast cells responsible for the synthesis of collagen and elastin within the dermal matrix, start to decrease and can become dysfunctional. As these collagen and elastin fibres degrade, skin becomes thinner, drier (as less hyaluronic acid is produced in the skin) and less elastic, so when skin gets folded due to facial expressions such as smiling or frowning, it has a harder time smoothing itself out.