OK, I found the list. (Not my list) Explanation of "codes": P=Pearl M=Matte IR=Irridescent ME=Metallic This is the info I received from shu customer service regarding other "codes"/letters with their products: "We are glad to clear up any confusion that you have on our "codes". The "A", "B", "C", or "D" that you may find on some of the products (for example the Glow On Blushes) is actually the order in which the color came out. First you will find just the number with a product, then we may have created another similar color, so we added an A onto it and so on. The only codes we will have are the P for Pearl, M for Matte, ME for Metallic and IR for Iridescent in the eye shadows. You will find S for Sheer and N for Nude [though I think N is supposed to be for Natural as beauty.com explains the finishes on their site...including M for Matte] in the lip products." The numbering system can be a little confusing until you get used to it... 100's are Pinks and Roses; 200's are Oranges; 300's are Yellows, Golds and Bricks; 400's are Yellow/Greens and Olives; 500's are Greens and Turquoises; 600's are Blues; 700s are Purples; 800's are Beiges and Browns; 900's are everything else including Rainbow, White, Silver, Gray and Blacks Blushes00-09 are misc (purple, beige, wine-gold, etc) 10-19 are Reds and Roses 20-29 are Wines 30-39 are Pinks 40-49 are Peachs 50-59 are Oranges 60-69 are Bricks 70-79 are Browns 80-89 are Ambers 90-99 are misc (gold and silver are the only ones I know of) Originally Posted by maiho since you are such a shu expert. Can you help me with their colorings. I hate numbers and letters and i have no idea what it means. I got a pro spot concealer but i think i got a color too light because of the stupid swatch online and i couldnt understand what the number and letters mean. Thanks