THE Ageing PROCESS of the Skin STARTS AROUND THE AGE OF 25.
The visible cause of skin ageing is THE SLOWING DOWN OF THE REPRODUCTIONS OF FIBROBLAST CELLS and the basal stem cells
Ageing fibroblast cells produce less Collagen and elastin RESULTING IN the skin losing its firmness and elasticity.
THE AGEING basal stem cells produce less keratinocytes and makes the skin dull