The first time I returned too the hairdresser the Covid Security was good, face masks, shields and gloves were worn by the hairdresser and all bags and coats put in plastic bags. This year, it was almost back to normal. I time my haircuts with the infection rates, as I do cinema, theatre, eating out etc. I know of a Christmas Party with 20 people, all tested negative in the morning, one tested positive in the evening, one other person also caught it from same party. This Omicron is so easy to catch, unless you really really don’t mind the risk of getting it, and feel your hair is more important, then I would not go to an indoor situation where hardly any face mask wearing is practiced, with little or no ventilation, and hairdryer’s blowing virus particles about the salon. Wait till the end of January/February maybe if you can.