Acne typically begins during adolescence, when hormonal changes cause the enlargement of sebaceous glands and an excessive production of sebum in the skin. This combined with follicular pigment hypercornification, blocks the follicles and provides a perfect warm anaerobic environment for bacteria to thrive in. Consequently, many people experience an abnormal proliferation of bacteria, predominantly propionibacterium acnes (P. acnes). This typicalrly causes painful, inflamed lesions that can appear on the face, chest, back, limbs and virtually any other part of the body.
Although most patients eventually outgrow their acne, some individuals remain susceptible to it throughout their lives. Even for those who no longer generate new symptoms, permanent scarring frequently results.
Treatment with light therapy has long been recorded. Acne is a photo-responsive disease. P. acne bacteria contain endogenic porphyrins which are excited by blue and yellow light to attack and destroy the bacteria. With successive treatment with light therapy such as IPL, the rate of acne destruction can be enhanced to be greater than that of acne bacteria growth, leading to the reduction of inflamed lesions and the prevention of further traumatic scarring.
The results are greatly improved if preparation time is taken, other treatments are combined with the IPL, and a good range of home care has been used.