I agree on the truth mirror. I usually mix waterweight foundations. Either half of the dark and light or less of the dark depending on the season. Yesterday, I accidentally squirted out a whole bunch of the dark thinking it was the light. I figured it would be okay to just put more of the light. I check in my bathroom mirror to see if it matched my neck and it did. Checked later in the car and it did not! I was so surprised.I'm nw 20 and so far light plus isn't pulling too yellow on me, but I've only worn it once and I didn't get a chance to look at the truth mirror (sun visor mirror) after I put it on. I also need to compare it to my face and body, I know Karen at makeupandbeautyblog said it's less sheer but I think it might be more sheer just more blurring?