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    Siena Gagliano

    Siena Gagliano

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    Beauty Editor

    Siena Gagliano is the Beauty Editor at Marie Claire, where she writes and edits reported features, trend stories, and expert-backed shopping roundups. Before joining the team full-time, she was an editor at Cosmopolitan, where she specialized in SEO-first beauty content and commerce strategy. Her bylines have also appeared in Allure, ELLE, Bustle, Well+Good, Popsugar, and Women's Health, covering everything from the best products for brighter, glowier skin to the science behind face mapping. Curious about the behind-the-scenes magazine life and her go-to beauty picks? Follow her on Instagram at @sienagagliano.

    Latest articles by Siena Gagliano

    anti winter nail trend
    So, We're All Boycotting Winter Manicures?

    The biggest nail trend at the Golden Globes is summer shades.

    Nails
    • messy updos
      Celebs Are Ditching Ballerina Buns for a Much More Low-Key Updo

      The 2026 Golden Globes red carpet signals a soft hair era.

      By Siena Gagliano

      Hair
    • melasma treatment
      I May Have Found a Brightening Ingredient That's Better Than Vitamin C

      Meet tranexamic acid—the treatment that plays the long game.

      By Siena Gagliano

      Skincare
    • heel treatment
      Foot Care Isn't Sexy, But It Makes My Cracked Heels Feel Smooth as Hell

      Severe dryness is in my past.

      By Siena Gagliano

      Skincare
    • winter hairstyle inspo from the runways, street style, and celebrities
      Winter's Chicest Hairstyle Trends Never Try Too Hard

      Think softness, movement, and just enough polish to feel intentional.

      By Siena Gagliano

      Hair
    • kosas shiny objects
      I’m Calling It: Kosas Just Launched the Best Highlighter of the Year

      We just entered 2026, but this product is already racking up points.

      By Siena Gagliano

      Makeup
    • nordstrom half yearly sale beauty
      These Beauty Products Never Go on Sale—Right Now, They're All Under $50

      There's a reason I love Nordstrom's Half-Yearly sale.

      By Siena Gagliano

      Beauty
    • loewe candles
      Fashion Girls Can't Gatekeep Their Favorite Candle Brand Anymore

      It's also beloved by Martha Stewart.

      By Siena Gagliano

      Fragrance
    • Sidia | Glossier
      This Five-Second Body Care Ritual Keeps My Skin Cashmere-Soft

      Even in freezing cold weather.

      By Siena Gagliano

      Skincare
    • A woman at fashion week with strong eyebrows illustrating a guide to the best brow pens of 2024
      I Found Eyebrow Blindness Redemption With This Under-the-Radar Brow Pen

      Canceling my microblading appointment as we speak.

      By Siena Gagliano

      Makeup
    • Patrick ta lip balm launch
      Patrick Ta's Brand New Tinted Lip Balm Marries Gloss and Moisture

      Six sheer shades, three happy editors, one very good product.

      Makeup
    • apres ski beauty
      My Après Ski Glow Is Sponsored By This 5-Step Skincare Routine

      Caught looking dewy at 10,000 feet.

      By Siena Gagliano

      Skincare
    • freckle pens and beauty marks
      This $26 Stamp Pen Brought My Childhood Freckles Back to Life

      If you want natural-looking results, start here.

      By Siena Gagliano

      Makeup
    • best lip oils | U Beauty
      I Canceled My Filler Appointment After Trying This $10 Lip Oil

      On repeat.

      By Siena Gagliano

      Makeup
    • 111 Skin exosome therapy serum duo
      Can This $825 At-Home Treatment Really Dupe a Facelift?

      I tested it for four weeks to find out.

      By Siena Gagliano

      Skincare
    • bfcm skincare
      I've Searched Over 3,000 Skincare Deals—These 10 Are Hands-Down the Best

      Everything might be on sale, but this is what's actually worth it.

      By Siena Gagliano

      Skincare
    • sheet mask and a blue eye
      This 10-Minute At-Home Treatment Convinced Me to Cancel My $300 Facial

      Glow incoming.

      By Siena Gagliano

      Skincare
    • lip blushing lip tattoo
      I Got My Lips Tattooed—And Now I'll Never Use Lipstick or Liner Again

      No regrets.

      By Siena Gagliano

      Makeup
    • nineties blow dryer brush hair
      Ten Minutes and My Favorite Blow Dryer Brush Is All You Need for the Perfect Bouncy Blowout

      Voluminous '90s hair, incoming.

      By Siena Gagliano

      Hair
    • Luxury under 50 beauty gifts
      No One Will Know You're Shopping on a Budget With These Under-$50 Beauty Gifts

      Chic, luxurious, and wallet-friendly.

      By Siena Gagliano

      Beauty
    • Images of a shell, bee, sheep, fish, and skincare products such as a serum, moisturizer, and ampoules on a black and white and muted yellow background.
      Skincare’s Wild Side

      From salmon DNA to snail mucin, beauty’s next big trend is all about animal-derived formulas. But are the results as eye-popping as the ingredients?

      Skincare
    • marie cliare readers choice awards 2026 logo with some of the best beauty products
      PSA: We're Giving Away a $500 Sephora Gift Card to Four Lucky People

      All you have to do is vote for Marie Claire's first-ever Reader's Choice Awards.

      By Samantha Holender

      Beauty
    • sephora sale skincare
      I'm a Skincare Snob—These 10 Products Are Worth Your Money During the Sephora Savings Event

      Now is the time to stock up for the season.

      By Siena Gagliano

      Skincare
    • Emma Roberts attends the Bazaar "Women Of The Year 2025" photocall at Callao Cinema on October 28, 2025 in Madrid, Spain
      Emma Roberts Just Made a Major Hair Switch-Up for the First Time in Years

      All aboard the bob train.

      By Siena Gagliano

      Hair
    • sunday self care
      My 5-Step Self Care Routine Is More Relaxing Than a Spa Day

      This Sunday reset brings me (and my skin barrier) back to life in time for Monday.

      By Siena Gagliano

      Beauty
    • exosome skincare
      I Tried 10 Exosome Serums to See if the Next-Gen Beauty Tech Could Boost My Glow

      Science meets skincare.

      By Siena Gagliano

      Skincare
    • home fragrance
      The Art of a Luxuriously Scented Home Involves More Than Just Candles

      It's all about layers.

      By Siena Gagliano

      Fragrance
    • best self-tanners
      Two Hours and $15 Is All I Need to Create a Maldives-Level Glow

      You'd never know this tan was fake.

      By Siena Gagliano

      Makeup
    • bag charms beauty
      Move Over Labubus—Beauty Bag Charms Are the Hottest New Accessory for Fall

      These little lifesavers are my new portable vanity.

      By Siena Gagliano

      Beauty
    • pubic hair trend
      SKIMS Just Monetized the Bush Renaissance

      Kitty carpets get Kim-ified.

      By Siena Gagliano

      Beauty
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