DrGeorgiaLee Moisturizer - All Skin Type

I have a question for anyone who has bought or used DrGrorgiaLee Moisturizer - All Skin Type. I just opened mine to use and I realise that there is a lot of residue in it when I shake it and the colour of the Moisturizer is yellow. It is as though the vitamin C content has oxidised or gone bad?? Can anyone who has used her brand of moisturiser tell me what yours was like?

Thanks!