What do you think bout Neauvia fillers, are they safe?

Neauvia is not a filler that is approved by the FDA and so it is not available for injection in U.S. I can't comment on its safety. It is important that you have this discussion with your treating physician prior to the treatment. 

Hi, thanks
for posting your question. Every country has their own governing body
that approves a list of cosmetic/medical treatments, products etc. It
is important to ask a few standard questions at your consultation.
Who will be performing my injections/what qualifications do you hold?
How much experience do you have with this procedure? What are the
risks involved? What product will you use and is it approved? These
questions should eliminate your concerns and ensure you are being
treated by an expert. All the best, Dr Campey