I was at Sephora looking for a face primer and stumbled upon the No. 28 Primer Serum by Hourglass. I bought the 0.33 oz size (retails $22.00 here) and was quite excited to try this product out.  The formula is a hydrating, oil blend serum that you put on your face before putting on makeup (hence it is a face primer).

The No. 28 Primer Serum is an oil blend which glides onto your skin, evens pores, and shields against environmental aggressors.  The formula’s hydrating oil provides a smooth surface before makeup application. This formula is packed with great key ingredients. The number 28 in the name signifies key ingredients such as 14 essential oils (lavender, geranium, rose geranium, vanilla, clove, orange peel, amyris, lemon peel, petitgrain, eucalyptus, rosemary leaf, bois de rose, cedar leaf, ylang ylang), 10 lipid-rich plant oils (jojoba, rose hips seed, evening primrose, hazelnut, borage seed, kukui nut, sweet almond, green tea, olive, and cherry pit), and four vitamins (A, B5, C, and E).

So how do I use this product? I put on my moisturizer and eye cream first.  Then I use a small amount of the primer serum - one small pump for my whole face is sufficient. I then wait a couple of minutes for the oil to dry before applying my foundation.  The serum isn’t greasy or oily feeling at all; it sinks into your skin resulting in hydrated feeling skin.

What are the results? The results are a smooth, long lasting makeup application! I seriously can last 9+ hours at work with my makeup in tact and also during a hot, sweaty day outside.  It's also great for winter-time when my face is dry.  This serum provides a great canvas for my makeup and my foundation glides effortlessly over my face.  As an added bonus the sales rep at Sephora mentioned that this serum can also be used alone as a hair serum!