UKRob
Forum GOD!
Because constriction and dilation are by definition acts of ‘closing up’ and ‘opening up’ - therefore there is no myth. I suspect that applying cold water to a hot face also has an impact In terms of constriction.Which is absolutely fine. Why are you concerned about whether it does or not, out of interest?
Also, I’m not saying astringent doesn’t do that. I’m saying things like cold water and aftershaves etc don’t close your pores because they can’t close. The myth is that they open and close.