Sienna Miller has long been admired for her laid-back, bohemian-inspired looks, and the 42-year-old actor and model recently shared her go-to routine for achieving her 'summer boho glow,' revealing that the secret lies in one product from the legendary makeup artist Charlotte Tilbury . In the video posted to Charlotte Tilbury's Instagram page, Sienna gives fans an look at her makeup routine, which features the new £35 Charlotte Tilbury Unreal Skin Foundation Stick . She describes the product as "magic," noting how it blends seamlessly into her skin, providing coverage without feeling heavy.

Her Instagram caption reads, "Thank you @charlottetilbury for this incredible new creation that is perfect for the summer!" You can check out her glowing skin and makeup tutorial below. READ MORE: Charlotte Tilbury slash 'magic in a bottle' skincare set worth £73 to £44 READ MORE: Kate Middleton's £750 anti-ageing bee venom face cream is now less than £100 The foundation stick is designed to be versatile, offering a lightweight, breathable formula that’s ideal for all-day wear. Sienna highlights how easy it is to apply, making it a must-have for those who love a quick, fuss-free beauty routine.

Alongside the foundation stick , Sienna reveals that her summer boho glow also relies on a few other key Charlotte Tilbury products. She uses the Airbrush Bronzer to sculpt and define her cheekbones, the Beauty Light Wand i n the shade 'Spotlight' for that luminous, sun-kissed highlight, and .