It seems that every cosmetic line now makes a foundation primer, and it's true that if you want your make-up to last 8 hours or more, a primer certainly helps. Smashbox cosmetics were originally created for models, and their products are designed to last for hours under hot lights without touch-ups, so you can be reasonably sure that their primer will be one of the best. It is available at fine department stores, Sephora stores, or on-line at Sephora.com or Smashbox.com.
Unlike many lines that make a "one size fits all" primer, Smashbox has several varieties. There is the original clear primer, the primer with SPF 15 and Dermaxyl for older skin and to protect sking, a new oil-free primer, an apricot-toned primer called Color Adjust, and the greenish Color Correction. Because I have lupus and frequently have reddened skin, I chose the Color Correction.
The product comes in a pump bottle, and looks quite green in the bottle. One or two pumps is plenty to cover the whole face. Obviously, it doesn't turn your skin green, but it does act to correct and tone down the redness. It doesn't completely remove my redness, but it tones it down enough that I don't need a concealer or even a full foundation; a tinted moisturizer leaves my skintone even.
This product does what it promises to do, but there are a few things working against it. First, its price, $38, puts it outside my regular budget. It's not the most expensive primer available, but it's right up there. Second, the pump bottle doesn't effectively get all of the product out; once you're down to the last half-inch or so, you need to remove the top and go after it with a cotton swab. I was informed by a Smashbox representative that they are changing that packaging, so with luck this will stop being a problem soon. Finally, although Smashbox describes it as feeling "like silk" in their product description, it feels slightly oily to me. Although my skin is both dry and sensitive, I would prefer it to feel moisturizing, not oily. It doesn't irritate my skin or cause break-outs, so this may be my personal feelings and not a true reflection of the product.
I'm giving it an overall rating of 3.5. If you can afford the price without flinching, it would be at least a 4.0, because it does what it promises to do, and does it well. However, the problems mentioned keep me from rating it higher than this.