My understanding is that bacterial growth, of any kind, is self-limiting, as
a symbiotic relationship is usually needed for non-threatening bacteria to
survive. It may be a Ph thing, or competition with other organisms like
yeasts etc that stabilise p.acnes numbers.
If you are overly sensitive and your skin (in)balance induces high numbers
of p.acnes, then its a recipe for acne.
"Pace" <pace123 RemoveThis @REMOVETHIShotmail.com> wrote in message
news:bt9mvv$rj4$1@hercules.btinternet.com...
> so in normal people the body lets p.Acnes reproduce infinitely?
>
> >> Stay informed about: Resistance to P.Acnes