Beauty Snoop: Insiders Reveal Their Must-Haves

iPod Nano, $149. "I always have music when traveling. Right now I'm listening to My Morning Jacket and The White Buffalo — a band from Topanga Canyon, where I live."

Aveda Lavender Fleurs Oil, $17. "Lavender oil is good for everything — in the bath to help me fall asleep, on my clothes to freshen them up, on my skin to ward off mosquitoes."

PureDKNY Verbena Basil Eau de Toilette, $85. "It's fresh and not overpowering."

Biotherm Skin-Ergetic Serum, $48. "It contains broccoli serum, which is anticarcinogenic and super-healing."

Diptyque Feu de Bois Gris Candle, $90. "A candle and a big sarong make hotel rooms feel like my own space."

Purémedy Original Drawing Salve, $27. "This amazing all-natural salve is great for treating insect bites or preventing infection of scrapes and cuts."

Actress, singer-songwriter

R.Soles Boots, $362: "When I'm at home, my style is very casual. I live in these low cowboy boots."

La Roche-Posay Thermal Spring Water, $9. "We're spoiled in France with all the great pharmacy goodies. This refreshing face mist is one of the best."

Avène Eau Thermale High Protection Cream SPF 50, $21.

La Mer Crème de la Mer, $135. "My skin is very sensitive, and this is the only product that hydrates without irritation."

Laura Mercier Secret Concealer in No. 2, $22. "All you need to camouflage blemishes or dark circles."

Lucas Championnière Electric Pulverizer, $349. "This old-school French diffuser is amazing for opening up my pores — it gives me the best steam facial."

Balenciaga Paris L'Essence Eau de Parfum, $130. "The contrast between the violet and vetiver notes makes this a darker, more mysterious counterpart to the first Balenciaga scent. This one is totally me!"

Allergy Luxe Organic Pillow, $40. "This pillow is my ultimate travel essential. It seriously saves me every time I fly."

Ryan Crupi Ocean Spray, $28. "I work with Ryan a lot, and this amazing saltwater spray for hair actually helps me create sexy beach waves on my own."

Dermalogica Intensive Eye Repair, $48. "Since my skin is naturally oily, I skip the moisturizer and just use this rich eye cream morning and night."

Karite Lips Shea Butter Vanilla Lip Balm, $9. "I'm from Montreal, and this all-natural shea-butter-and-vanilla lip balm from Canada is one of my favorite imports."

Rodeo Drive Dermatology & Aesthetics Fresh Antibacterial Drying Pads, $45. "One swipe of these witch-hazel-infused pads and you're breakout-free."

L'Oréal Paris Voluminous Million Lashes Mascara in Blackest Black, $9. "I'm a mascara loyalist, and I love how thick, dark, and chunky this formula makes my lashes."

J.Lo's Love? Album, $14. "Her single 'On the Floor' is the perfect dance song for getting pumped at the gym. I love anything that has a saucy, energetic beat."

Caswell-Massey Floral Rose Water, $18. "If I go to a new country, I'll go to the nearest pharmacy and buy a couple of whatever kinds of rose water they have — the more natural, the better. It's an amazing skin toner."

Agustín Reyes Royal Violets Eau de Cologne, $10. "This is a Cuban drugstore cologne that we use on babies. I douse myself in it. Most people outgrow it, but not me."

New Chapter Wholemega Whole Fish Oil, $18. "Omega-3s are an unbelievable beauty supplement. My skin, hair, nails ... they're big for me."

Thierry Mugler Angel Eau de Toilette, $97. "It's my 'adult' perfume, though I've worn it since high school!"

iPad, $500. "It's kind of the best thing ever. All my apps are, like, NPR. You know, Science Journal, National Geographic Traveler — totally geeky!"

Pantene Medium-Thick Hair Solutions Breakage to Strength Conditioner, $4. "Sometimes I leave this in, tuck my hair in a bun, and put on a shower cap and sleep in it. Not a sexy look. I do not suggest it if you have a special friend over. But it makes your hair supersoft in the morning."