Kate Middleton's favorite rosehip seed oil for achieving radiant royal skin is 40% off during the Amazon Prime Day Early Access sale

There's no denying that Kate Middleton has been blessed with glowing skin, but it looks like good genes aren't the only secret behind her stunning complexion. 

• The product rumoured to be behind Kate's signature glowing skin is currently on sale for Amazon Prime Day, much to the excitement of royal fans. 
• It's believed that the Princess of Wales swears by Trilogy Organic Rosehip Face Oil, with the 41-year-old reportedly dabbing it on her cheeks every morning before work. 
• In other royal news, snap up Kate's favourite Superga trainers for nearly 40% off during the Prime Day sale.
  

The face oil supposedly behind the Princess of Wales' glowing skin is available to buy at a hefty discount during the current Amazon Prime Day sale, much to the delight of royal beauty lovers. 

Whether she's sparkling in gold at a James Bond premiere or doing the school run from Adelaide Cottage, the 41-year-old rarely steps out in public without her signature dewy skin. 

Kate Middleton's diet and exercise regime likely plays a major role in her complexion, but she's also know to keep up a good skincare routine. 

A healthy lifestyle and good DNA aren't the only factors the Princess of Wales has to thank for her stunning skin though. 

The royal's complexion is also reportedly the result of a few trusty products - one of which is now on sale at an impressive discount. Kate Middleton's Trilogy Organic Rosehip Face Oil is 40% off thanks to Amazon's Prime Day 'Early Access Sale', with a 20ml bottle of the bestselling skin product retailing for just £12.30, down from £20.50. In the US, the same product is discount from $22.67 down to $13.60. 

Trilogy Certified Organic Rosehip Oil, £20.50 £12.30 | Amazon

Trilogy's cold-pressed rosehip oil is 100% natural and certified organic, containing those all-important fatty acids and antioxidants to help you get a glowing complexion.

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According to US Weekly, the princess likes to dab a couple of drops on her cheeks in the morning before she sets off on her royal engagements. It's understood that the Princess' mother, Carole Middleton, is also a fan of the Vitamin A and antioxidant-packed rosehip oil. 

Laura Mercier's tinted moisturizer is another staple in Kate Middleton's flawless skin routine, with the royal reportedly favoring the cult classic to achieve that effortless no-makeup glow. Luckily, this product is also on sale, with shoppers able to pick up a discount when they shop the royally approved product through Look Fantastic. 

Laura Mercier Tinted Moisturiser Natural Skin Perfector £19 £16.15 | Look Fantastic

This cream tinted moisturizer comes in 20 different shades to help ensure you can find your perfect match. 

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When the future Queen wants a more glamorous finish, she's known to reach for some heavier-coverage creams. The Duchess of Cambridge's wedding foundation is thought to have been Bobbi Brown's Long Wear Even Finish Foundation and it became a must-have for royal beauty fans everywhere after it was revealed she'd worn the high-end product for the historic event. It's also been reported that Kate did her own makeup to walk down the aisle, having always preferred to apply cosmetics on herself than have a professional artist take the reins.