Cameron Diaz. Photo: GF/bauergriffinonline.com

Herndon Heald
Cameron Diaz chose Herndon Heald's Satellite Disc Ring for the London Premiere of "Knight and Day." The simple polished sterling piece is great for special occasions or everyday outfits. The price isn't so bad, either -- it's just $105 (a rare steal compared to most celebrity baubles).

Three Custom Color Specialists
This color-focused makeup brand is a staple in many pros' kits. Just ask Troy Jensen, who mixed Three Custom Color Specialists' Limelight and Palladium lipsticks to create a perfect shade for Rachel McAdams. Fergie is also a fan -- she wears the Warm Camel and Warm Pebble eye shadows to make her baby blues pop.

L'Oréal Paris Elnett
Kourtney Kardashian picked up some of L'Oréal's famous Elnett hairspray at her local Walgreens in LA. Only available overseas for many years, this cult favorite recently returned to U.S. shelves, much to the delight of fans everywhere.

Angelina Jolie in "Salt." Photo: Andrew Schwartz, SMPSP

Chantecaille
On the set of "Salt," makeup artist Tony G enhanced Angelina Jolie's famous lips with Chantecaille Brilliant Gloss in Charm. The word on the street from Tony is that this gloss "kept her lips in way better condition than any lip balm." (p.s. Head hairstylist Pamela May assistant Robert Chiu used Phyto 7, Phytovolume actif and Phyto Professional to create many of the hairstyles in the film).

Ole Henriksen Aloe Vera Deep Cleanser
We know West Coast skincare guru Hekriksen has tended to some famous faces, but this product has an especially star-studded following: Alanis Morissette, Leonardo DiCaprio, Mark Wahlberg, Christina Applegate, Tyra Banks, and Mario Lopez have all used Ole Henriksen's aloe vera face wash.

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