Vitamin C supplement made my skin look very yellow?????

I feel like my skin looks very yellow kung umiinom ako ng 1000mg ascorbic acid morning and night. I wonder kung ako lang ang ganito or may mga naka-experience din nito. My face is like MAC shade NC20 but my body NC15. My skin looks fresh and soft when I take vitamin c except ayaw ko yung yellowish effect. May solution ba dito, I don't want to give it up. Thanks