Adult Acne
Adult acne is the result of an interaction between hereditary, an increase in sebum (oil) production, retention hyperkeratosis (excessive dead skin cell build up) and propionibacterium.
The bacteria produce toxic substances that attack openings in the skin and eventually encite them to rupture.
In the past physicians thought acne was a bacterial infection and this seemed to be a logical conclusion because many of the features of acne (such as redness and tenderness) were in keeping with infectious conditions, and antibiotics were generally helpful in achieving some level of control over the condition.
Its now recognized that the bacteria is only one part of the process that leads to acne. Acne bacteria are actually present within everyone's skin and will only produce symptoms in some people, irrespective of the quantity of bacteria involved. Small pimples, blackheads, whiteheads, papules, pustules, nodules and cysts lie on the same spectrum.
The acne process is a complex one and flourishes particularly during the teenage years. Females are more prone than males to developing acne that persists beyond teenage years. Some women can develop acne in their 20s and 30s, even if they didn't experience any during adolescence.
There are only a few ingredients worth using, and they must be used in appropriate strengths and pH, unadulterated by cosmetic fillers and buffers.