Kate Middleton's nourishing shampoo is on sale today with 16% off!

The nourishing shampoo that Kate Middleton uses is currently on sale with 16% off - so you can get healthy, glossy hair just like Duchess Catherine.

• It's no secret that a lot of Kate Middleton's favorite make-up and skincare buys are from designer brands, but she also uses some affordable options, too. 
• Her go-to shampoo is reported to be Kérastase Nutritive Bain Satin Shampoo, which is packed full of nutrients for healthier hair.
• In other royal news, Kate Middleton demonstrates she's 'a mother first and foremost' during royal engagement.

Kate Middleton's glossy locks are envied across the globe - and it looks like the secret to her shiny, swishy hair could be down to her failsafe shampoo.

The Duchess is rumored to be a big fan of Kérastase Nutritive Bain Satin Shampoo when it comes to keeping her locks nourished and silky.

Kate Middleton's glossy hair is part of her trademark style and she's famed for always having a perfect bouncy blow dry.

Of course, it's clear that Kate's genetics have played a part in her enviable mane - just look at sister Pippa's long dark locks for further evidence - but we're sure that this nourishing shampoo helps the Duchess stay looking her best.

Kérastase Nutritive Bain Satin Shampoo is currently in the Amazon Prime Day sale, down to $28.41 (£24.40) from $33.99 (£29.19) - a 16% saving. 

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Kérastase Nutritive Bain Satin Shampoo, was $33.99 (£29.19) $28.41 (£24.40)  | Amazon (opens in new tab)

This nourishing shampoo is a great all-rounder, providing rich nutrition and including glucose, protein, and lipids to bring dry and damaged locks that are feeling the effects of hard water on hair (opens in new tab) back to life. 

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Reviews on the Amazon website are glowing, with one writing, "I hate, hate, hate that I have to spend over $20 on a bottle of shampoo. However - this is absolutely the best shampoo I've ever used. I have highlighted, shorter hair, and use a lot of styling product; most shampoos will strip the product out, but the color will end up getting stripped out too."

"Not with Kerastase - this shampoo makes my hair feel squeaky clean, but also hydrated - an amazing combination. I don't need to use more than about a quarter-sized amount to get a really good lather; sometimes I'll leave it on for half a minute to really get my hair in great shape."

While another said, "I have used Bain Satin 1 for 15 years now. It leaves your hair soft and shiny. I have had other people ask what shampoo I use? The Satin 1 does not leave your hair oily at the end of the day. Great for natural curly or wavy hair."

You can take a look at more beauty deals in our Amazon Prime Day beauty deals round-up.