I don't think you're taking enough to see a difference. You need 10,000-20,000 IU vitamin A daily. Check how much is in the Carlsons 1000mg. I believe from their website a "serving size" - 3 tabs - contains only 3750 IU of vitamin A.

I find it's more economical and effective to just buy the Green Pastures gel product because you get so much more vitamin A (and other nutrients) per tsp. Also I can't recommend Carlsons because their CLO is highly processed and can throw off your ratios of vitamin A to D. There's more info on this in the CLO thread - check the comments there.