Confirmed by her facialist: Sienna Miller's 'otherworldly' radiance is down to this cult skincare brand

Wondering why Sienna's skin looks *this* good? We went straight to the source to find out

LOS ANGELES, CALIFORNIA - NOVEMBER 07: Sienna Miller attends the 2026 LACMA Art+Film Gala at Los Angeles County Museum of Art on November 07, 2026 in Los Angeles, California. (Photo by Monica Schipper/Getty Images)
(Image credit: Getty Images)
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If Sienna Miller has off days, we've certainly never witnessed one. The actor is nothing if not consistent in her enviable style, and has been for decades.

And yet somehow, Miller still has the ability to stun us with a red carpet beauty look. When we spotted her latest outing, at the LACMA Art + Film Gala in Los Angeles, her fresh-faced radiance compelled us to investigate how her skin was prepped for the glitzy event.

Enter: Lord Gavin McLeod-Valentine, the award-winning facialist to the stars known as The Face Sculptor. He's also a global ambassador for the luxury, celebrity-loved brand behind Sienna's 'otherworldly' glow - Augustinus Bader. After quizzing him on his exact method, we can share all the details as well as the products you need to try.

Speaking exclusively to woman&home, Lord Gavin detailed his goals when prepping Miller for the event: "Sienna possesses an almost otherworldly natural beauty, the kind that Father Time seems to visit far less frequently than the rest of us."

"My approach for the LACMA Art+Film Gala was to celebrate and enhance that inherent beauty, accentuating her natural high points, sculpting her cheekbones, defining her jawline, and infusing her complexion with a renewed sense of vitality and luminosity."

Our sources at the brand revealed that McLeod-Valentine employed the 13-step Augustinus Bader Method and his own signature sculpt massage. I know what you're thinking. If it takes 13 steps for Sienna to achieve this look, what hope is there for the rest of us?

We're pleased to report that this powerful skincare brand is known for creating some of the best facial moisturisers and skincare treatments on the market, all containing the powerhouse ingredient TFC8. So even using one key product can make a dramatic difference.

Detailing his method, Lord Gavin explained, "I began with a luxurious double cleanse, followed by illuminating hydrators, including the Vitamin C Serum. Through my signature rhythmic sculpting massage and targeted lymphatic drainage, complemented by radiofrequency, microcurrent, and cold laser technologies, I worked to refine her facial contours while revealing the beautiful, creamy tones of her skin.

"I finished with The Rich Cream, enveloping her complexion in a gorgeous cascade of luminosity. Ultimately, I wanted Sienna to look exquisitely sculpted, wonderfully refreshed, and, above all, entirely herself.”

Sculpted, refreshed and luminous sounds like perfection to us. If you're curious as to what the whole 13-step skincare extravaganza involves, we've got every detail of the Augustinus Bader Method below.

  1. The Cleansing Balm 
  2. The Cream Cleanser 
  3. The Face Oil 
  4. The Pro Sheet Mask 
  5. The Vitamin C Serum 
  6. The Sheet Mask layered on top of The Eye Patches 
  7. The Elixir 
  8. The Eye Cream 
  9. The Rich Cream 
  10. The Rich Eye Cream
  11. The Lip Balm 
  12. The Body Cream on the neck and décolleté. 

What's more, McLeod-Valentine worked not one but three technology-based treatments into the ritual: the Lyma Laser (known to be a favourite of Sienna's), radiofrequency, and microcurrent.

And while we may not have as much party prep time as an A-LIster - or indeed world-class skin experts at our disposal - we can now go forth into party season taking one or two radiance-boosting tips straight from Sienna, thanks to Lord Gavin.

Fiona McKim
Beauty Editor, womanandhome.com

As woman&home's Beauty Channel Editor, Fiona Mckim loves to share her 15+ years of industry intel on womanandhome.com and Instagram (@fionamckim if you like hair experiments and cute shih-tzus). After interning at ELLE, Fiona joined woman&home as Assistant Beauty Editor in 2013 under industry legend Jo GB, who taught her to understand ingredients and take a cynical approach to marketing claims. She has since covered every corner of the industry, interviewing dermatologists and celebrities from Davina McCall to Dame Joan Collins, reporting backstage at London Fashion Week and judging the w&h Beauty Awards.

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