Ascorbic acid is very unstable, great idea, but adding this to pretty much most creams deactivates it. Using it alone in a suspension fluid may work, however I found it too harsh on my skin, and no visible results just side effects. Unless your a professional dermatologist, I would only recommend this if you have been advised how to properly use it.

This is ok so far. Does give a tingling feel but this is expected 

It gives very fast results, evens out the complexion, but there is a big disadvantage. This form of vitamin C cannot be combined with niacinamide.

Just bought my 2nd pot - have definitely noticed a difference in the glow of my skin since using everyday. I’ve reacted to previous vitamin c serums so this format seems to work well. Only downside is it can be a bit messy!

Mixed this with the Marine Hyaluronic serum for under my husbands eyes as he gets terrible dark circles- so far seeing an improvement