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Hey Upper East Siders — and beyond! Kelly Rutherford sat down with ET to share her top style must-haves — and exactly how she channels Gossip Girl’s Lily van der Woodsen.

To feel like her best self — no matter the ensemble — the actress, 56, starts with a less is more wellness approach.

“You can wear the most beautiful outfit, but when you feel healthy and vibrant from the inside out, it shows. That inner radiance brings any look to life — whether it’s great cashmere or a simple t-shirt and jeans,” she shares.

For her all-around glow, the entrepreneur relies on Biosil’s vegan formulas to boost collagen, keratin, and elastin — helping her maintain voluminous locks, a smooth complexion, and a resilient manicure.

“When I feel my most confident, everything looks and feels effortless. My hair has that shine we all love, with a soft, natural wave. It’s healthy, full, and doesn’t need a lot of styling. My skin feels more supple, and my nails are clean, strong, and polished with a neutral tone,” she says while celebrating her partnership with the brand.

Once her beauty routine is in place, the model — who’s always sharing the chicest elevator mirror selfies on Instagram — has no shortage of trendy essentials to choose from.

“I’ve been loving linen dresses, and I adore anything with an artisan romantic feel — delicate embroidery, oversized sunglasses, straw hats, bags, and a great sandal. Timeless pieces with a modern twist are my go-to for summer,” she notes.

And when it comes to iconic staples, Rutherford still has a single item she snagged from the Gossip Girl set.

“I took just one ring,” the star reveals. “I would have felt like the character if I were wearing the clothes.”

While she left most of van der Woodsen’s closet behind, Rutherford admits the role continues to inspire her own fashion picks today.

“Playing Lily was such a joy, and I loved her wardrobe. There was this elegance and structure to her style that I loved. I’m a bit more relaxed than Lily in real life, but I still love a beautiful, tailored coat, suit, and accessories.”

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