What is photoageing?

March 21, 2019

What is photoageing?


Photoageing is the premature ageing of the skin due to repeated excessive exposure to Ultraviolet radiation (UV rays).  It is extremely common in Australia, due to the harsh climate and an outdoor lifestyle. 




Photoageing can be characterized by the following visible signs of skin ageing:


  • Fine lines and wrinkles

  • Hyperpigmentation

  • Uneven skin tone or skin dullness

  • Coarse skin texture

  • Loss of skin firmness or elasticity

  • Facial redness


Facial redness is one of the most common visible signs of photoageing. In fact, it is almost universal across photoaged skins.  Facial redness is often undiagnosed or not considered a major concern, as its is easily covered by makeup. Additionally, redness can sit on the skin layer below surface hyperpigment which can also conceal redness.


Facial redness is most commonly caused by photoageing and occurs in two ways:


The skins dermal matrix (containing Collagen, Elastin and Hyaluronic acid) is broken down as a result of photo-damage, subsequently thinning the skin and causing underlying blood vessels (capillaries) in the dermal matrix to become more visible, therefore giving an increased appearance of skin redness. 


As a natural wound healing response to photo-damage, the growth factor VEGF (Vascular Endothelial Growth Factor) is produced in response to UV light entering the skin and creating free radicals.  This growth factor stimulates the production of new blood vessels.  New and existing blood vessels become contorted and enlarged an increase surface redness. 

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