> I'm wondering what ingredient(s)everyone
> prefers in an "anti aging" product and why you like that ingredient?
From what I know, the best known anti-aging ingredient would be a UVA
sunscreen, but that would be effective only for someone who gets long and
intense enough sun exposure at a time to matter. I did lab research in this
field, and although my research wasn't directly involved with "aging" per
se, I wound up reading and going to conferences of other reserachers who
were so involved. Some of them, at least at the time, would have you
believe that UV damage to the proliferative tissues is strictly a function
of total exposure, which would mean every minute over a lifetime adds up no
matter how brief in duration or intense each instance of exposure was, but I
don't think the evidence backed them up -- although I've no direct evidence
to contradict them either. Myrek Peak sliced things very finely, saying the
damage would start to occur when the skin was just short of starting to
burn, but the criteria he used would be enough for me to say an actual burn
had started.
I haven't yet read the info on peptides being discussed here, but until I do
I'll just say that if their putative mechanism is to affect the turnover of
collagen, I would be very skeptical that they could get in significant
amounts to collagen-producing tissue from topical application.
Robert
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