If a mask is almost entirely fresh, wet ingredients, I don't recommend trying to make it in bulk for later use / hydration. (humblebeeandme.com)
But if you buy a package of rolled oats, some raisins, honey, and whatever else your family likes, you can make it in bulk for a lot less. (creditdonkey.com)
Just because I have a busy schedule and don't think I could make it every day, so is it possibly to make it in bulk then leave it in the fridge for a few days? (pumpsandiron.com)