Katie Holmes Reunites with Joshua Jackson in NYC

'She doesn't have any wrinkles on her cheeks which could mean she is using a Microdermabrasion which erases fine lines,' he told the Daily Mail.

'It is a minimally invasive skin resurfacing treatment that gently exfoliates the skin's outermost layer,' he added.

'Microdermabrasion takes away dead cells and creates a new surface and a more even-toned skin. It really erases years off a person's face.'

Kahn also suggested that the Hollywood star could be using hyaluronic acid to help her skin 'look healthy.' 

Other celebrities were spotted at the screening of the documentary film Brunello in the Big Apple. 

The project, which was directed by Giuseppe Tornatore, follows the 'life and philosophy of Brunello Cucinelli' - who is also known as Italy's 'King of Cashmere.'

Naomi Watts was chic wearing a double-breasted, black blazer as well as black trousers and a white blouse underneath. 

A loosened black bowtie was draped around the collar of the shirt and she later removed the blazer to better flaunt her outfit. 

The actress's blonde locks were parted to the side and styled into elegant waves, easily revealing a pair of silver earrings. 

Watts completed her ensemble by slipping into a pair of closed-toed black heels. 

The Mulholland Drive star held a small smile on her face as she paused for a photo session at the premiere. 

Christie Brinkley stunned in a shimmering silver blazer as well as matching, loose-fitting trousers. 

The former Sports Illustrated Swimsuit model added a sheer white blouse underneath and slipped into white pumps. 

Her blonde hair was parted to the side and cascaded down past her shoulders in light curls. 

Brinkley was joined by her daughter Sailor who donned a sequin black blazer as well as a matching maxi skirt with a small slit on the front. 

She also wore a black bralette underneath and carried a small black clutch in her hand for a final touch. 

Sailor additionally donned a pair of closed-toed black pumps and allowed her locks to flow down past her shoulders in light waves. 

Along with stopping for memorable pictures with her famous mom, Sailor took time to pause for a few solo snaps as well on the red carpet. 

Helena Christensen made a statement in a silver dress with a plunging neckline on the front while a white blazer draped over her shoulders. 

Her brunette hair was parted to the side and cascaded down past her shoulders in natural waves. 

Girls alum Allison Williams strutted onto the red carpet in a sleeveless satin gown that contained a short train at the back. 

The actress completed the ensemble by slipping into a pair of closed-toed, black heels. 

Dree Hemingway dressed for the occasion in a sleeveless, black tasseled dress as well as a pair of open-toed, black pumps.

The Starlet actress pulled back her locks into a sleek updo and carried a black clutch in her hand. 

She opted for minimal accessories and added a pair of mini silver earrings and a dainty bracelet on her left wrist. 

Grace Gummer wowed in a white blouse with a deep plunging neckline as well as a shimmering gold maxi skirt. 

The daughter of Meryl Streep added a pair of dangly earrings to further glam up the look for the special evening. 

The Love Story actress's hair was parted to the side and flowed down past her shoulders in light waves.

Gummer was seen crossing paths with Hemingway on the red carpet and the pair paused for a few snaps together. 

Martha Stewart made an appearance at the screening in a striped tan blazer as well as matching bottoms.  

The star also slipped into a pair of open-toed gold heels and added a pair of dark silver earrings for a finishing touch. 

Shonda Rimes wore a black dress that fell down towards her ankles and layered the stylish look with a black blazer. 

The TV producer wore a pair of chic black boots and carried a mini black purse in her hands. 

Sara Silva turned heads in a sleeveless silver dress with tasseled embellishments and opted for gray heels. 

The filmmaker combed back her dark hair away from her face and added a pair of mini earrings. 

Camille Rowe flashed a cheerful smile in a sleeveless, off-white satin dress and styled her blonde hair into a chic updo. 

Amy Fine arrived to the event in a short-sleeved black dress made of sparkling material and accessorized the outfit with a long gray necklace. 

The journalist additionally wore a pair of black earrings and added chunky bracelets onto each of her wrists. 

Alejandra Silva donned a dark gray dress with a plunging neckline on the front and added a pair of long dangly earrings. 

She was later seen pausing for a snap with Riccardo Stefanelli who was dressed to impress in a double-breasted black suit and bowtie. 

Oscar Isaac wore a black tuxedo which was paired with sleek black dress shoes and a black bowtie.

Jay Ellis donned a dark brown suit made of a velvet material as well as a white shirt and black bowtie. 

Camilla Cucinelli and Carolina Cucinelli also showed off their personal style while walking the red carpet. 

At one point, Gummer was seen crossing paths with designer Brunello Cucinelli and Federica Benda during the festivities. 

Jackson later posed for a photo with Carolina Cucinelli, Brunello Cucinelli, Federica Benda, Camilla Cucinelli and Riccardo Stefanelli at the screening in NYC.