Do-No-Wrong Beauty

Nails can be an accessory you have fun with.

“I think of nails the same way.”

Your Mix-‘n’-Match Mani Plan

Consider your coloring.

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Even out-there shades should be flattering.

To tell, look at your veins: Greenish equals warm; blue, cool.

Give a twist to a classic.

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“I love yellow on my nails,” she says.

“It complements my pale skin.”

Try OPI Nail Lacquer in Need Sunglasses?, $9.

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“I’m really into sea-foam green'70s bathroom style.”

We like OPI Nail Lacquer in Go on Green!, $9.

Listen-to-Me Lips

Quick Tips for Bold Lips

Play with intensity.

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Coral, fuchsia and red can go all-out bright or more mellow.

Keep the rest of your makeup natural.

To double-check you don’t overdo blush, apply lipstick first.

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Then you’re able to gauge exactly how much more color, if any, your face needs.

Williams loves MAC lipstick in Fusion Pink, $15.

“It’s a rad color for people who like lipsticks that pop,” she says.

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Can’t-Look-Away Eyes

Lightning-Fast Liner Tricks

Create a straight line every time.

Stick to Sharpie-like tips or gels, which draw smoothly.

Don’t be afraid to go beyond basic black.

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Baby-step into color with dark versionsforest green, navy or plumof brights you like.

MAC Penultimate Eye Liner in Rapidblack, $18.

Amazingly Real Skin

It’s hard not to be envious of Williams’s seemingly poreless complexion.

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Natural-Skin Secrets

Cover up sparingly.

Women use more foundation than they need, Schlip explains.

Not every inch of skin requires makeup!

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Conceal pesky spots only: dark circles, blemishes and redness.

Put skin in the spotlight.

Rub a pinky-peach cream highlighter on cheekbones to give radiance to mostly bare skin.

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“It makes it look lit from within,” Schlip says.

Hayley’s Favorite Skin Products

“I wear this every day!”

she says of Benefit Benetint lip and cheek stain, $28.

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The sun is a dye job’s biggest shine stealer.

Spray on leave-in conditioner with UV blockers to lock in color.

Get a trim before a touch-up.

Because ends are older than the hair near your roots, they’re also the most damaged and dull.

Cutting off that bottom inch can make your hair look like you just got it dyed, Robinson says.

Hayley’s Favorite Hair Helpers

Her healthy-hair secret: Moroccanoil Oil Treatment, $32.

“I put it in my hair, and then let it air-dry.”

Williams’s ponytail must: rainbow-colored Emi-Jay hair ties, $11 for five.

“They don’t break my hair.”

DIY Favorite Star Hairstyles

Try on the latest star hairstyles before you commit