So I have consistently been having issues where the collar/neck of my sweatshirts become stained. Either by neck oils or by the fragrances I spray on the pulse points on the neck. Obviously any usual stains such as from food or dirt are put into the wash without even thinking. But this issue is rendering what would be a clean sweatshirt requiring a wash which of course all adds up cost wise (washing machine).
I'm interested to know if anyone has any hacks or personal habits they practise to reduce or mitigate this.
After wearing once, I used to store my sweatshirts and hoodies until I one day I realised the change in colour around the neck area (usually going dark on darker clothes, and yellowish on lighter clothes). This is only on the neck area