I am writing an evidence paragraph telling what people do to their bodies in order to look good. Make-up, braces, surgery , etc are examples but they are not really "technology". This is what I have so far:

Today we have upgraded technology ...

Is there another word that I can substitute in for technology?

I'd be inclined to start it something like this:

With today's medical technology, . . .

http://thesaurus.com/browse/technology?s=t

Certainly! Instead of using the word "technology", you can use the word "innovations" or "advancements".

For example:

Today we have upgraded innovations...

Today we have advanced advancements...

These words still convey the idea of progress and advancements in various fields, including those related to improving one's appearance.