The "Kate Effect" deepens

When Kate Middleton praises a product, women the world over clamour to get their hands on it. It’s been dubbed the “Kate Effect”. The latest goodie to cause a global meltdown? 's Certified Organic Rosehip Oil.

After the US Weekly reported on March 5 that the Duchess has been using the rosehip oil in her "daily skincare regiment" throughout her pregnancy, the product sold out in the UK, with sales also sky-rocketing in the US. The company's share price is soaring as a result.

Trilogy is over the moon with the news. “Having it make headlines that the Duchess of Cambridge reportedly uses Trilogy is absolutely amazing. Celebrity endorsements of this scale can be transformational for a company, especially for us centred down here. It's really quite exceptional to think our product may have made it into the hands of the Duchess of Cambridge," says Trilogy international communications manager Lisa Wilson.

"While we’re not a new company on the beauty scene, an endorsement from someone of Kate's calibre really puts the brand in the spotlight internationally and reinforces the superior quality of our rosehip oil. Since the story first went live in the US, sales of Trilogy rosehip oil have been soaring everywhere. It’s testament to the true power of the ‘Kate-effect’ and celebrity endorsements in general.”