Great news...
I'd written the Milani Customer Service from their website for info on the quads & got a really nice response just now:
"Thank you so much for your compliments and comments on our products! Our Shadow Wear Long-Lasting Eye Shadow Quads were a special introductory promotional display that was available only in CVS and Walgreens stores. These Quads were a huge hit with our customers and are now sold out in the majority of these stores. But there is good news
The Quads will become part of our regular assortment of Milani products offered in these stores. The timing is up to each chain’s corporate office, but you should be able to find the Quads in stores mid-December to early January. There are 8 Quads, and each shade is new! None of these shades is a duplicate of our single Eye Shadow shades!
Typically, the CVS stores each carry a different selection of our products, ranging from 3 foot to 5 foot displays. Right now the larger/newer stores usually offer the largest selection. Within the next 6 to 9 months, we will be converting all of the CVS stores to a 5 foot display which will contain a very large selection of our products!
Our Milani cosmetics contain high pigment levels, and most of our shades are very vivid. Our Jordana line of Cosmetics has more neutral shades, and you might like to try some of these products. There are several Walgreens stores in Wichita, and each of them has a Jordana display that contains an exclusive line of Jordana Eye and Lip Pencils, Easy Brow & Easy Liners, and our new Color Extend, Eye Fixation and Colorwave products. You will find this display located next to the Cosmetic Register in all Walgreens stores."
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I've actually tried the Jordana lip pencil and really like it. I'm going to investigate further next time I'm in there. I can't wait for the permanent quads to come out so I can see them all.