Sinks into the skin, which is a big plus as I've had problems with TO niacinamide one for being too flaky. You can apply makeup over this one without a problem. 

Great vitamin C serum, also contains Ferulic acid, glycolic and lactic acids. Does not sting. And the skin drinks it up. 

Way too sticky and piles under every possible cream so not practical if you want to layer skincare

So oily you just feel like it's sitting on the surface of the skin, at first it did dry my skin a bit but after a while I didn't feel like it did anything so switched to prescription 

My very first experience with a retinol. Great introduction to the active

HanKat