Spray on an oil-free, water-light mist that works at any angle to protect from aging UVA and burning UVB rays: Neutrogena Ultra Sheer Body Mist Sunblock SPF 30, 45, or 70 ($9.99 each).
Clear the metal detectors but keep all your essentials close, like Bliss Clog-Dissolving Cleansing Milk ($28). Prada Infusion d'Iris purse spray ($74). Fekkai Technician Shampoo ($9). Tarte 24/7 Lip Sheer ($14). Clinique Dramatically Different Moisturizing Lotion ($12.50). Essie nail polish in Secret Stash ($8). Prescriptives AnyWear Multi-Purpose Makeup Stick ($35). Benefit A Little Bit Bad Gal Lash mascara ($9). Flight 001 Nomadic clear case ($5). Sequin ring. Top it off with a Smythson of Bond Street passport holder.
Up Your SPF
Though she's only in her 20s, Heroes star Kristen Bell is already a pro when it comes to protecting her skin. "I use a stronger SPF in the summer," she says. Her favorite is Clinique Moisture Sheer Tint SPF 15 ($26). "It gives my skin great coverage and soaks in, so even on a hot day it won't turn smudgy like foundation."
Get the Glow
"I try to be natural in summer, yet I like to have a healthy glow," says Christine Taylor, the 37-year-old actress and wife of Ben Stiller. Prescriptives Traceless foundation ($32.50) is her top pick for standing up to the heat, and she slathers on Kate Somerville Deep Tissue Repair ($150) "day and night."
Prescriptives Traceless foundation ($32.50)
Repair Sun Damage
Prep for Peep-Toes
Pink Polish: Perfect for Toes
Tame Your Tresses
Get Soft Lips
Sex and the City's sexiest cast member, Kim Cattrall is clearly doing something right. On her list of summer beauty staples are Murad Oil-Free Sunblock SPF 30 ($31), Jo Malone Scent Surround Spray in Lino nel Vento ($55), and Benefit Benetint Lip Balm ($20). She completes her look with "an Ecuadorean panama hat and Roberto Cavalli sunglasses."
For Luscious Lips
Benefit Benetint Lip Balm ($20).
Get Mad About Moisturizing
If Diane Keaton, 63, looks better than ever, credit an effective regimen. She relies on LOréal Paris Revitalift UV Daily Moisturizing Cream with Mexoryl SX ($21.99). "I wasn't careful when I was younger, so I visit a dermatologist for skin-cancer checks," she says.