Can you spot it? Nicole Kidman’s secret to looking unbelievably youthful is finally revealed

Oscar-winning actress Nicole Kidman turns heads everywhere she goes thanks to her age-defying appearance.

And now, the secret behind her youthful looks have finally been revealed.

The 52-year-old put on a glamorous display as she attended the premiere of Netflix’s Spellbound in New York City on Monday.

The Moulin Rouge! star appeared to be wearing additional hair pieces to add volume to her strawberry blonde locks at the star-studded event.

The additional extensions and Nicole’s natural locks seemed to be a slightly different shade as she flicked her hair over her shoulder.

The extra hair pieces, which seemed to be sitting on her scalp, gave the actress voluminous curled hair which complimented her sheer long white frock.

The additional locks blended into her natural hair which was visible above her forehead.

Nicole also showed off her smooth, porcelain visage at the premiere with a natural makeup palette.

Nicole Kidman (pictured) appeared to be wearing additional hair pieces to add volume to her blonde locks at the premiere of Netflix ‘s Spellbound in New York City on Monday

The Hours star has previously credited healthy lifestyle choices as the secret behind her age-defying complexion.

In 2007, Nicole denied undergoing cosmetic surgery and said her flawless skin is a result of her healthy lifestyle.

‘To be honest, I am completely natural,’ she told Marie Claire at the time.

‘I wear sunscreen and I don’t smoke. I take care of myself. I’m very proud to say that.’

However, in 2011, she admitted to getting Botox during an interview with German magazine, TV Movie.

‘I’ve tried a lot of things, but aside from sports and good nutrition, most things don’t make a difference,’ she said.

‘I even tried Botox but I didn’t like how my face looked afterwards. Now I don’t use it anymore and I can move my forehead again.’

The additional extensions and Nicole's natural locks seemed to be a slightly different shade as she flicked her hair over her shoulder

The additional extensions and Nicole’s natural locks seemed to be a slightly different shade as she flicked her hair over her shoulder

The extra hair pieces, which seemed to be sitting on her scalp, gave the actress voluminous curled hair which complimented her sheer long white frock

The extra hair pieces, which seemed to be sitting on her scalp, gave the actress voluminous curled hair which complimented her sheer long white frock

Nicole also previously showed off her collection of anti-ageing serums from plant-based beauty brand Seratopical.

In a sponsored video shared to Instagram, she was seen using the Radiant Face & Neck Serum, which retails for USD$40 (AUD$60).

She then demonstrated another of her favourite products, the Clarity Foaming Cleanser, which costs USD$25 (AUD$37).

Lastly, Nicole held up the Adoring Eye Serum while winking for the camera. The product also sells for USD$40 (AUD$60).

Nicole's hair appeared much thinner and shorter as she attended the Concert For Carolina Benefit with her husband Keith Urban last month

Nicole’s hair appeared much thinner and shorter as she attended the Concert For Carolina Benefit with her husband Keith Urban last month

The Hours star has previously credited healthy lifestyle choices as the secret behind her age-defying complexion

The Hours star has previously credited healthy lifestyle choices as the secret behind her age-defying complexion

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