I’ve looked into Sienna Miller's effortlessly tousled hair—here are the 9 products I believe she uses.

      I've always aspired to achieve the effortlessly tousled hair like Sienna Miller's, and it appears that the rest of the Who What Wear UK team (and many others) share this desire. With her hair looking stunning every time she appears, who wouldn't want to know Sienna Miller's hair product secrets? The magic of Sienna's hair lies in its nonchalant appearance; it always seems naturally styled. Those soft curls? It looks as though she simply woke up with them, gave her hair a quick zhuzh, and walked out the door. However, as a beauty journalist, I'm aware that such effortlessly wavy hairstyles and laid-back texture are meticulously crafted by her hairstylists—and I have long wanted to learn their tricks.

      After analyzing Sienna Miller's makeup, I decided to consult the hairstylists who style her hair for all significant events to uncover the hair products she uses, as well as tips for achieving that coveted look. Here's what I discovered.

      Sienna Miller's Preferred Hair Products, According to Her Stylists

      1. BaByliss 25mm Curling Tong

      BaByliss

      25mm Curling Tong

      First, how does Sienna achieve those soft, loose waves? "Sienna has incredible hair. It’s naturally thick with a slight wave. I love to enhance her natural texture, giving her hair definition and volume," says hairstylist Sam McKnight, who also founded his own hair line. "I typically use a few tools, including a BaByliss Pro Medium Curling Tong at 25mm and a hair straightener for the front sections," he notes.

      2. Hair By Sam McKnight Modern Hairspray Multi-Tasking Styling Mist

      Hair by Sam Mcknight

      Modern Hairspray Multi-Tasking Styling Mist

      "When using the curling tong, I mist each section with Modern Hairspray, then twist it down the barrel of the tong," McKnight explains. "I alternate the direction of the sections so the waves appear more natural, also keeping the sections small for added depth and texture. This prevents it from looking overly glamorous."

      3. Hair Straighteners

      GHD

      Original Hair Straightener

      "For the front sections, I either wave them away from her face or often use straighteners to create an 'S' shape, gently tapping with the straighteners to heat and form a casual face-framing wave," McKnight adds. We recommend GHD hair straighteners for curling 'S' waves.

      4. Hair by Sam McKnight Cool Girl Barely There Texture Mist

      Hair by Sam Mcknight

      Cool Girl Barely There Texture Mist

      Sienna's hair never appears overly styled, so McKnight suggests avoiding tighter curls and instead opting for a more relaxed wave. "Don’t overdo it or try to create strong waves. It should feel and look effortlessly chic," he advises. One of his essential products for achieving that "cool-girl" texture is the Cool Girl Texture Mist. "If you have finer hair or hair that falls flat easily, my Cool Girl Texture Mist is a must. It provides instant volume and texture within seconds."

      5. Hershesons Zhoosh Foam

      Luke Hersheson, hairstylist and CEO of Hershesons, created Sienna's effortless waves at the Venice Film Festival. “I applied our Zhoosh Foam to provide hold and then blow-dried it in," Hersheson says.

      6. Hershesons The Multi-Tasker

      Hershesons

      The Multi-Tasker

      “Following that, I used the large barrel wand attachment on The Multi-Tasker, which is a chunky tong that gives the hair a gentle bend," Hersheson explains. "Instead of tighter 'spaniel' waves, you achieve a softer, more relaxed look that appears very natural." The variety of attachments makes it ideal for creating an array of hair styles.

      7. Hershesons Almost Everything Cream

      Hershesons

      Almost Everything Cream

      To achieve that piecey texture, Hersheson applied this versatile cream through Sienna's mid-lengths. “To finish, I used some Almost Everything Cream through the mid-lengths and ends, separating the curled pieces to give a light, lived-in feel,” he mentions. "When the wind blew through her hair, it moved beautifully.”

      8. Hair by Sam McKnight Happy Endings Nourishing Balm

      Hair by Sam Mcknight

      Happy Endings Nourishing Balm

      "Sienna’s hair benefits from moisture, so I always use my Happy Endings Nourishing Balm through her lengths," says McKnight. "It adds polish and instant hydration, which is essential for effortless definition, while also reducing frizz."

      9. Hair by Sam McKnight Love Me Do Nourishing Oil

      Hair by Sam Mcknight

      Love Me Do Nourishing Oil

      "For a glossy, high-shine finish, I’ll finish off with