toxins??

"Hygienists commonly believe (through experience and successful results) that skin eruptions and health problems of the skin (such as acne and seborrhea), arise from one cause.........and ONE cause only.

Sometimes the body is unable to keep up with the process of elimination in our daily lives and for any number of reasons, and so becomes "clogged" with varying degrees of "waste" which can be both of an exogenous and endogenous origin. This results in toxemia."

The thing that gets me is, if there is only ONE cause of this, then why do people seem to get it around the same time (puberty)?

If acne really is about toxins, then why are there millions upon millions of heavily toxin-laden people that have lived for 50, 60, 70+ years of absorbing toxins and have never cleansed, ate right, etc that are not covered in skin disease?

Yet, a 13 year old kid that has very little toxin accumulation (as compared to someone who is 40 years old, 50 years old, etc) can have terrible acne infections.

Logic would tell me that there is something more going on than mere toxins here. Logic would tell you that someone in the 30's or 40's much more toxin accumulation than someone in their teens. Yet, people in the 30's and 40's are much less likely to have acne. So, if toxins are really the cause, then why is there in inverse relationship here?