I would wash the headband with handwash around once a week or two. And don’t wear them when using any product in my hair.
Unfortunately the penny pinchers did not provide replacement ear cushions, which are permanently stained too. It was mentioned a customer before me got a full set as replacement, which included the cable,ear pads, and case.
The last photo is of the old pair, didnt look yellow all around to me, but when you compare them its a stark difference.
Moving on I have ordered a kiwi shoe protector to spray on the new pair, to at least try and keep them white for longer. I don’t think i can deal with the silicone covers for the headband, so this is the next best option. Any other suggestions welcome.
Yellow in a year with regular cleaning is disappointing, and If i had to buy today I may go with the blue/black. Worst case is painting the headband black or white, but that’s worse case.