It’s no secret that the younger generation have significant sway over beauty trends today, with Gen Alpha's economic footprint expected to reach $5.46tn (£4.32tn) by 2029 – which is almost as much as the spending power of Millennials and Gen Z combined.

Though much of the media attention surrounding preteen’s love of beauty has revolved around the adoption of inappropriate anti-ageing routines (and rightly so – they should not be using retinol), it isn’t all scary. Sienna Miller has shared how beauty can be bonding for her and daughter Marlowe, aged 11.

marlowe sienna miller
Arturo Holmes//Getty Images

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'For some reason that age group know more about make-up and skincare than anybody in the world,' the actor says in her Harper's Bazaar UK ‘Inside my beauty bag’ video interview. Obligingly letting Marlowe execute her make-up one day, she admits that the results were 'pretty impressive'. Ergo, 'I now listen to my 11-year-old about what I should buy,' she says – showing the items in a bulging beauty bag that her preteen persuaded her to invest in.

cannes, france may 19 marlowe sturridge attends the horizon an american saga red carpet at the 77th annual cannes film festival at palais des festivals on may 19, 2024 in cannes, france photo by mike marslandwireimage
Mike Marsland

As Miller explains in the clip above, the first is the 'very trendy' Glow Recipe’s Watermelon Glow Niacinamide Hue Drops, a tinted serum that brightens as it hydrates, imparting 'a slightly bronzed glow'. And the second is a cult classic: Charlotte Tilbury’s Hollywood Flawless Filter, a glow-giving complexion product that can be used in myriad ways – either alone or within/atop of foundation; all over the face or in precise areas.

Watermelon Glow Niacinamide Hue Drops
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Hollywood Flawless Filter
Charlotte Tilbury Hollywood Flawless Filter

Showing her well-worn Hollywood Flawless Filter, she describes it as granting 'a glowy, dewy, perfect young face', adding that Marlowe 'was right' about how good it is. They're not alone in thinking so: via consumer trials conducted by Charlotte Tilbury, 96 per cent of people agreed that the product acts as a real-life filter – with one currently sold every 32 seconds.

sienna miller and marlowe sturridge
Getty Images

Another product Miller doesn't mind sharing with her eldest daughter is The Outset's Smoothing Vitamin C Eye + Expression Lines Cream. 'This is Scarlet Johansson’s brand,' she says – showing the product in the full version of her 'Inside my beauty bag' interview. 'Her products are so clean, and with my child raiding my cupboard it’s nice to know there are things she can use and won’t be damaging for her skin.' Plus, according to Miller, 'it really works'.

The Outset Smoothing Vitamin C Eye + Expression Lines Cream

Smoothing Vitamin C Eye + Expression Lines Cream

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Headshot of Bridget March

Bridget March is the Multiplatform Beauty Birector at Harper’s Bazaar, overseeing all beauty and wellbeing content on the UK website and YouTube channel.

From news and interviews to tutorials and treatment reviews, she answers the beauty questions you’re searching for with expert advice (see the renowned #SkinSchool franchise for evidence), taking deep dives into the latest trends (from polynucleotides to Profhilo), and sharing the products A-listers really use (via the ‘Inside my beauty bag’ video series).

Bridget has written for various brands within the Hearst portfolio and beyond, and was formerly Digital Beauty Editor at Cosmopolitan. She lives with her husband and two sons (plus a baby on the way!) in the Cotswolds.

Follow Bridget on Instagram @bridgetmarch