Kate Middleton
Kate Middleton gets rid of her wrinkles using Biotulin. Pictured: Middleton leave a community centre in Dundee after meeting with employees and their families from the local Michelin tyre factory which is to cease production on January 29, 2019 in Dundee, Scotland. Getty Images/Ian Rutherford-WPA Pool

Kate Middleton’s secret to getting rid of her wrinkles may have just been revealed.

Lucy Devine, a journalist for The Sun, claimed that the Duchess of Cambridge uses the all-natural product Biotulin, which is also known as the Botox in a bottle. The $64 product contains a local anesthetic that freezes the facial muscles and dissolves wrinkles.

According to skincare expert Arabella Preston, the German-made product also contains a moisturizing plant extract as well as hyaluronic acid which helps counteract aging. The effects of using Biotulin becomes visible just after one hour of use and it lasts up to nine hours. But the website also says that the risks and side effects of the product are still currently unknown.

Dr. Maryam Zamani, a facial aesthetic specialist, told Get the Gloss that she is skeptical about Biotulin and the claims that it can completely block muscle movement even though she has no first-hand experience from using the product herself.

“Its other two main ingredients are a local anesthetic extract from the plant acmella oleracea and hyaluron that provides hydration to the skin. Hydrated skin always looks less wrinkled than dry skin, so that’s something,” she said.

However, the specialist warned against the use of the product because no long-term studies on its safety and efficacy have been conducted. It is not also classified as a drug and is not FDA approved. And the results of the product are temporary, which means that it needs to be applied daily for the best results.

In related news, Middleton also made headlines this week after it was revealed that her rumored feud with Meghan Markle will be discussed in the special documentary “Kate v Meghan: Princesses at War” on TLC on Feb. 5 at 10 p.m. EST.

Middleton and Markle’s rumored feud has existed ever since reports swirled that the Duchess of Sussex is pregnant with her first child. However, some insiders are convinced that the two Duchesses are actually in good terms.