Yes they are. Most of the bristles used in our makeup brushes are synthetic. We do have a select few eye brushes that are natural bristles, and they too are cruelty free. Order by Wednesday for free priority shipping "GREAT FOR UNDER EYE POWDERING. I really love this brush it works really great for under eye powdering as well as highlight and it can be used for target powdering in sma... https://thebeauty-me.com/