SFC Reed Diffuser Base Introducing our first in-house diffuser base, crafted from 100% vegan ingredients. This guilt-free base is perfect for your aromatic creations, serving as an excellent translucent carrier for both fragrance and essential oils with exceptional scent throw. Important Information We advise using between 10% to 25% fragrance or essential oil when creating reed diffusers, please always consult the IFRA certificate for compatibility.