She revealed sudden weight loss back in May while attending the prestigious Silver Party in Sydney.
And it seems Shelley Sullivan has lost even more weight in the aftermath of her sudden split from her husband Anthony last year.
The MCoBeauty founder, 51, displayed her very slender figure on Thursday as she arrived back at Sydney Airport following a trip to Hamilton Island.
Chatting on the phone as she made her way through the terminal, a stony-faced Shelley wore a tight white singlet layered under a matching cropped cardigan.
She completed her look with tight black trousers, beige sandals and a matching shoulder bag.
Sweeping her short blonde tresses back from her face, Shelley opted for minimal makeup and accessorised with gold rings.

MCoBeauty founder Shelley Sullivan, 51, (pictured) displayed her dramatic weight loss as she arrived back in Sydney following Hamilton Island getaway on Thursday
Shelley was left devastated by her abrupt split from husband Anthony following seven years of marriage last year.
A fight reportedly prompted Anthony to leave the country and head to the US, while his wife moved into the five-star InterContinental Hotel in Double Bay.
The devastated mother-of-two was later seen being comforted by her mum Kerrie in Sydney’s financial district, where her multimillion-dollar business is based.
The pair looked visibly distressed as they shared a tender moment amid her marital breakdown.
At the time, Shelley told Daily Mail Australia she would not be commenting on the marriage break-up.
‘Shelley is absolutely shattered by the split,’ a close friend previously told Daily Mail Australia.
‘Anthony was her rock, she’s devastated – her marriage was everything to her.’
The businesswoman’s close-knit group of friends are doing their best to support her as she deals with the split.


Chatting on the phone as she made her way through the terminal, a stony-faced Shelley revealed her very slender figure in a tight white singlet layered under a matching cropped cardigan. (Pictured left on Thursday and right in August 2022)

She completed her look with tight black trousers, beige sandals and a matching shoulder bag

Sweeping her short blonde tresses back from her face, Shelley opted for minimal makeup and accessorised with gold rings
‘She has an amazing network that has just put their arms around her at this time,’ the friend added.
Anthony is an accountant and CEO of Quantaco, which provides financial services to companies in the hospitality trade.
The couple had known each other for years and were friends before starting to date, and then tied the knot in a lavish ceremony in Point Piper in 2016.
The pair have since moved out of their $11,000-a-week heritage-listed rental mansion Leura in Bellevue Hill.
Shelley made her mark in the 1990s with her model and talent agency before launching her thriving ‘masstige’ beauty brand ModelCo in 2016.
Masstige is a retail term referring to a product that is marketed as ‘prestige’ or premium but is in fact mass-produced and inexpensive.
The beauty boss launched her brand’s Tan Airbrush In A Can more than 20 years ago and it still sells a bottle every 36 seconds worldwide.
She is also credited with introducing the world to the first heated eyelash curlers.
ModelCo has overtaken legacy beauty brands like L’Oréal, Maybelline and Rimmel in the Australian market.
The likes of Kendall Jenner, Hailey Baldwin, Rosie Huntington-Whiteley and Elyse Knowles have represented the internationally famous line.
In 2022, MCoBeauty was approached by a large Australian conglomerate which acquired a portion of the business.

Shelley was left devastated by her abrupt split from husband Anthony following seven years of marriage last year