About four years ago I started to wear MAC. I went to the stand and told the MUA that I wanted a foundation, concealer and a powder, but I didn't know what color to get. She ended up matching me to NW 45, I didn't know anything I figure she was the expert so I trusted her opinion. I didn't know the different NW and NC. I assumed NW was warm and NC was cool.
I was somewhat pleased at first but sometimes I would notice that my skin would look really orange or my face would look way more red the my neck and chest. So I decide to try another brand, so I tried MUFE and a few other brands, because I thought i was NW 45, I would use that as a base to pick out colors which were also very red. Unsatisfied I returned to MAC Studi Fix Fluid the only problem I had with the foundation was the color.
Then I seen a couple of youtube videos with lovely ladies who were using NC 50 their skin tone looked very similar to mines and I began to toy with the idea that maybe I was an NC 50. Also around that time i found out MAC coloring was some what backwards NW are the red/pink undertones and NC are the golden/yellow undertones. It was all making sense to me now. I went to a different MAC stand and got matched again. The MUA said to me "What color do you normally wear" when I told her an NW 45 she sort of made a face and replied "You sure you look like an NC 50" I told her I wasn't so she applied both to my face and the difference was subtle, but there. That was about a year ago and I been rocking NC 50 every since. However there still is some red tones in my face (the rest of my body is very yellow) so to balance it out I use Studio fix powder in NW 43.
Even a few months ago when the new pro longwear came out has to "convince" the MUA to sample NC 50 on me. After trying her suggestion, NW 45 and my NC 50 she had to admit "Yea the NC 50 is much better on you"
as you can see the difference of Nw 45 and Nc 50 are very slight but as the day goes on Nw 45 does mix with the oils and get redder. What happens when you mix red and yellow?? You get orange.
me with no makeup as you can see the center is yellow and the outer is more red, my neck and chest are yellow. therefore to get a more uniformed look I go with a yellow based foundation now.
this is what they look like in the bottles
on my hand
blended out slightly (as you can see the NC 50 sort of disappears in to my skin)