I am 50 and have started to see ageing in my face, so i decided to investigate fillers for wrinkles. I did some research and Restylane seemed the "safest" option the publicity stating its a naturally found substance in the body.
All I can say is that my parents generation was told that the drug Thalidamide was "safe" and then thousands of children were born with terrible birth defects. as for Botox, who knows? I think if you want fillers your own fat is safest.