in childhood most people have skin so perfect it almost glows in the dark.
Puberty marks a major transition in the skin, as it becomes oilier and more prone to blocked pores.
But, pimples apart,the change is positive as the oiliness of the skin protects it from dehydration, keeping it soft and supple.
Meanwhile, skin cells are regenerating with record speed, marking their way from the basal layer to the epidermis in around 28 day.
adolescence has other rewards that help compensate for the inevitable outcrop of spots.
The collagen and elastin in teenage connective tissue are still perfectly cross-linked and coiled , giving it bounce and firmness.
Although exposure to the sun may already have damaged the unerlying tissues, that demage has
not yet surefaced.