Britain's Catherine, Duchess of Cambridge takes her seat in a State Carriage for the carriage procession to Buckingham Palace, as part of the ceremonial welcome ceremony for Singapore's President Tony Tan at the start of a state visit at Horse G
Britain's Catherine, Duchess of Cambridge takes her seat in a State Carriage for the carriage procession to Buckingham Palace, as part of the ceremonial welcome ceremony for Singapore's President Tony Tan at the start of a state visit at Horse Guards Parade in London October 21, 2014. The President of Singapore Tony Tan and his wife Mary Chee started a four day state visit to the Britain on Tuesday. The Duchess, also known as Kate, is pregnant with her second child. REUTERS/Leon Neal/Pool

Apart from her suave personality and sophisticated fashion sense, Kate Middleton is popular for her glowing and flawless skin. Skin Specialist and the woman behind Heaven skincare products, Deborah Mitchell has worked for years with the royals and has finally revealed the secret to get healthy, rosy and dazzling skin like that of Duchess of Cambridge's.

In an interview with Hello! Online, Deborah Mitchell talked about her experience of making her clients beautiful and attractive. Besides Kate Middleton, she has also worked with the Duchess' mother-in-law Camilla Parker Bowles. The two royals seem to be the fans of Deborah's skincare products famous for its special component "bee venom." It is said to be one of the most effective "anti-ageing substances."

The bee venom is a patented ingredient of Deborah Mitchell's beauty products. Camilla Parker Bowles and Kate Middleton reportedly use particularly the bee venom mask in black and gold. The mask works as cleanser and "tightens skin" and it gives the face a natural lift. Age defiance cream and silk skin BB cream are other two products the two royals like to use along with orange flower cell renewal hydrogel.

The royal skin specialist also revealed how much she loves working with Kate Middleton and Camilla Parker Bowles. Prince Charles' wife and Duchess of Cornwall was Deborah's first client among the royals. It was the Duchess of Cornwall, who advised Kate Middleton to use Deborah's products and facials. And she did so before her wedding with Prince William almost three years ago.

Deborah states that Camilla Parker Bowles is "one of her favourite clients" as well as "kindest, kindest person." Speaking about her first visit to the palace for consultation and treatment, she said it felt "surreal" and like she was "walking in a dream."

As for her experience with Kate Middleton, she said the Duchess is "absolutely gorgeous." Deborah reveals that she "hasn't got many spots."

Some other loyal clients she absolutely loves are Victoria Beckham, Dannii Minogue, Robert Downey Jr., Tess Daly, Simon Cowell and more. She recently added first lady Michelle Obama to the list, who bought her products.

The Australian singer Dannii Minogue is Deborah's "super favourite client." She describes the "Iron Man" star as "really clever and really nice." Fashion icon and model Victoria Beckham has been reportedly "using Heaven for years and years" including the age defiance cream and bee venom products.

The secret about royals using Deborah's patented bee venom mask, surfaced a year after Prince William and Kate Middleton's April 2011 wedding. Speaking to Deborah about it, Daily Mail revealed that she gave a bee venom facial to Kate Middleton at Clarence House just a few days before her royal wedding. It was also reported that Camilla Parker Bowles took a beauty treatment from Deborah on the morning of the royal wedding.