Xanthum Gum you can just buy directly. It's disgusting.It's too thick and not sticky enough. It lacks the light and ethereal quality of semen.
Maltodextrin is a highly processed starch used in industrial food processing. It's also too thick.
Something like Arrowroot might be better, but that one is a giant hassle because it only thickens in a very narrow temperature range. Too high and it turns to watery goo. Too low a temperature and it fails to thicken at all. And even if you get the timing and temperature perfect, it falls apart after a few hours and becomes liquidity.
Thickness has a lot to do with how much Xanthum you use. Adding Corn Starch can make it more white and sticky. Heating and mixing can help with texture. If you add corn starch you don't want it any where near private parts.
