When the sticky heat of summer is on, the last thing you want is a heavy foundation weighing you down. You've already heard that tinted moisturizer is the way to go for sheer, subtle coverage; but how do you sift through them all?

We tried dozens of brands to bring you only the best.

FAVORITE! Laura Mercier Tinted Moisturizer SPF 20 Oil Free, $42

This super lightweight foundation provides ample coverage and lots of moisture. Girls with dry skin can't stop singing its praises and, thanks to the oil-free formula, it's tops for ladies with oily skin too.

Celebrities have the world at their fingertips, which may explain why we're so fascinated with the who- what-where of everything they do. This week, we've rounded up the latest and greatest beauty products from the gilded medicine cabinets of Fergie, Sarah Jessica Parker, Keira Knightly and many more.

Spa at Home

Being rich and gorgeous is no walk in the park. Just ask the likes of Rachel Bilson, Kelly Lynch, Ashley Judd, Fergie, and Nicole Richie, all of whom turn to SpaRitual, a collection of eco-luxury at home spa care products, to decompress after a hard day of primping and preening for the camera. Jessica Simpson is such a fan of the collection that she even got her Mom and BFF Ken Paves hooked. And while the SpaRitual collection is used professionally at high end spas such as Canyon Ranch, Ritz Carlton and Mandarin Oriental, for the not-so jet set, SpaRitual's at home collection includes a line of vegan hand, body and foot treatments that sell for $18 to $28.

Celebrate Dr. Cook's 20th Anniversary with three amazing printable Savings Invitations from the Cook Centers for Medical Skin Enhancement. Each offer incorporates a treatment for only $20, including a Custom Facial, Photofacial, Fractional Skin Rejuvenation, or yes, even Botox, when certain Medical Spa selections are booked. But hurry, because these offers will only be available through August 31st! Tightly monitored by Dr. Cook, Board Certified Aesthetic Plastic Surgeon, this exclusive Gold Coast office provides a concierge level of care for its clients. Learn what sets The Cook Centers apart with a complimentary Skin Care consultation for any Medical Spa treatment.

Cook Centers for Medical Skin Enhancement is located in the Gold Coast at 737 N. Michigan Ave., Suite 760, Chicago, IL 60611. Phone: (312) 867-0580