I’m thinking about offering add-ons for my dry face masks. Particularly oils, but I’m open to suggestions. So I could offer small dropper bottles of individual oils like grapeseed, castor, or tamanu, or I could offer a blend of the oils and have that be the only choice. OR! I could just start making the dry face masks with oils blended in. I takes away the customization ability, but also simplifies mixing. Thoughts?