Discover the beauty secret Kate Middleton shares with models and influencers

Cara Delevingne and Kate Middleton incorporate rosehip oil into their daily beauty routine. The model shared with Harper's Bazaar that organic rosehip oil is her hero for smooth skin. She often adds a few drops to her face after washing it at night, just before moisturizing.

According to Us Weekly, Kate always uses rosehip oil in her daily skincare routine because she loves its effect. In fact, her mother, Carole Middleton, is a fan too, because of all the beneficial properties rosehip oil contains.

The popular oil that Cara, Kate and Gwyneth reportedly love so much is Rosehip Oil by Trilogy ($54) that nourishes and repairs your skin. Its powerful active ingredients are highly effective on scars, stretch marks, and other skin problems, such as dehydration and ageing.

Karlie Kloss revealed an excellent technique for applying facial oil to Into The Gloss. The model loves to mix a basic moisturizing cream with a drop of Decléor Neroli Amara Hydrating Oil Serum or with face oil by Rodin. She explains, “Especially in the winter, my skin gets really dry so I do whatever I can to moisturize.”

Decléor Neroli Amara Hydrating Oil Serum ($79.95), is enriched with essential oils such as neroli, sandalwood and bitter orange. Its light and silky texture allows for rapid absorption after application. Simply warm up two droplets in the palms of your hands and gently massage into your face.

We understand why Karlie also opts for the Rodin Jasmine & Neroli Face Oil. This face oil smoothens, hydrates and makes your skin shine thanks to its 11 different essential oils from things like jasmine, sweet almond, and argan – all known for their anti-aging qualities. You can apply this oil both in the morning and evening, available on Net a Porter for $170.

Australian model Elle Macpherson told Harper’s Bazaar that the Rose de Vie Sérum Délicat by Dr Sebagh is the secret to keeping her skin hydrated. And here’s why: its formula is made up of organic rosehip oil whose anti-inflammatory powers restore tired and sensitive skin. With just a few drops per day you will see your skin looking more healthy and smooth. Find it on Net a Porter for $151.

Natalie Portman described each step of her strict beauty routine to The Cut. She’s a strong believer in the refreshing and revitalizing qualities of facial tonic, but also applies essential oils to her face just after moisturizing, specifically Rosehip BioRegenerate Oil by Pai ($40).

Well-known beauty bloggers and makeup artists such as Nicol Concilio, Shayla and Farah Dhukai have shared via Instagram an excellent and practical trick to make your skin look more bright and hydrated. They mix a few drops of Radiating Moisturizer Rose Gold Elixir by Farsáli ($40.50) with their base foundation. This oil has a very light texture and quickly absorbs into your skin. The plus side? It contains 24 karat gold and yes...you guessed it...Rosehip and pure botanical products! It contains gold? This mineral has excellent qualities: it delays the decrease in collagen production and elastin to prevent sagging skin, as well as stimulating cellular renovation.

So there you have it! Models, influencers, actresses and even members of the royal family trust in this simple beauty trick to keep their face hydrated, glowing and looking healthy. Remember! You only need to mix a few small droplets of your favorite oil with your moisturizer or apply it as a finishing touch to your skincare routine.