It's a cellulose fiber. Wood pulp cleaned up and turned into a fiber. IMO it has a much cleaner taste, I only get a couple of hits of break in time rather than half or a full tank. Flavor variables will be all sorts of things like the atomizer design, wire used, and others that I don't know lol. I tried builds until I got something that I like. ATM my set up is a 24/32g dual clapton coils, 5 wraps, 3mm ID SS316L. I have that in a Sapor RDA with rayon, vaping at 80-90w (around 4.5v).
Giant rayon thread for info: Rayon wick, better flow, flavor, saturation and Nic Hit!
Giant rayon thread for info: Rayon wick, better flow, flavor, saturation and Nic Hit!