By moisturising everyday will I reduce the noticability of natural blemishes?

So maybe a few light freckles, a small light birthmark... I never moisturise, never bothered. So from your experience will the blemishes seem less noticable? My skin got loads worse after I got sick, so right now it's kinda bleh. What kind of moisturiser? Do they sell non oily, non sticky non smelly 30SPF tinted moisturisers?