You've been washing your hair all wrong! Blake Lively reveals the secret to celeb-worthy locks

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Thanks to a huge array of floral-themed outfits, gorgeous dewy make-up and perfect blowouts, Blake Lively's appearances during this summer's press tour for It Ends With Us have been nothing short of show-stopping.

But while she's every inch the glamorous Hollywood starlet, the Gossip Girl actress doesn't always follow convention - at least not when it comes to her enviable hair. 

When the mother-of-four launched her own haircare range, Blake Brown, on August 4, one popular product - which is often considered essential when it comes to haircare - was noticeably absent: conditioner. 

The lack of a conditioner, however, was not the result of an oversight but rather a reflection of Blake's personal approach to caring for her hair, inspired by professional stylists whose sole job it is to make sure celebrities are perfectly coiffed. 

Referring to the hairstylists on Gossip Girl, the actress told Allure: 'They were like, "Oh God, no, we don't use conditioners."' And, since then, neither has she.

Actress Blake Lively (pictured), 36, who is known for her smooth and shiny bouncy blow-dries, launched her own haircare range, Blake Brown, in the US on August 4

Blake Brown products (pictured), which are all vegan and both silicone and sulphate free, come in containers designed to look like precious metals 

It's from these same hairstylists to the stars that Blake learned the real secret to lustrous locks, namely, hair masks.

And, with the Blake Brown range (Brown is Blake's father's surname), sold exclusively in Target stores in the US, she's on a mission to convert conditioner devotees into hair mask enthusiasts. 

For the 36-year-old doesn't go straight from shampooing to styling - there's no way she'd achieve her signature smooth and shiny bouncy blow-dry if that were the case. 

Rather, Blake has made hair masks a mainstay of her routine, using them after 'every single wash,' according to Allure, and she has included in two varieties in her product range. 

In an interview with Vogue, Blake revealed: 'It’s not that people in the entertainment industry are gifted with better hair.

'We use a different hair system to the one promoted on the mass market.'

The system, as you will glean from the Blake Brown range with its two shampoos - one 'nourishing' and the other 'strengthening' - and two complementary hair masks, entails alternating between two sets of products.

Because 'your hair needs two things, strength and moisture,' as Blake told Vogue, it's essential to use one set when you wash you hair and then swap it out for the other set the next time. 

Blake learned from professional hairstylists early in her career that it's best to forsake traditional conditioner in favour of hair masks - and the Blake Brown product range, which doesn't include a conditioner, reflects this 

When it comes to moisture, customers should opt for the Wild Nectar Santal Fundamental Nourishing Shampoo ($19) followed by the Wild Nectar Santal Fundamental Nourishing Mask ($20).

And, when it's time for strengthening, the go-to products are the Sandalwood Vanille Fundamental Strengthening Shampoo ($19) and the Sandalwood Vanille Fundamental Strengthening Mask ($20). 

Blake Brown also offers a pre-shampoo treatment called Milky Sandalwood Rich Reset Pre-Shampoo Mask ($25) and three styling products -  Bergamot Woods All-In-Wonder Leave-In Potion ($19), Blackcurrant Vanille Glam Mousse ($19) and Amber Vanille Dry Shampoo ($20). 

Sold in containers designed to look like precious metals, the products promise to not only enhance your hair but give your bathroom a boost too. 

You will notice that at $19 and $20, the products - which, seven years in the making, are all vegan and both silicone and sulphate free - are much cheaper than some other premium brands. 

Shocked by the price of some of the products she'd been recommended during her career, for example, Kérastase's $48 shampoo, Blake wanted to make sure her range was affordable. 

She told Allure: 'It took a really long time to get it right—and to get it at that price point.'

The Blake Brown product range, with its two shampoos - one 'nourishing' and the other 'strengthening' - and two complementary hair masks, was seven years in the making

But it wasn't just getting the prices right that slowed the process down. Rather, Give Back Beauty - the company the actress partnered with to create and launch the products - wasn't keen on omitting conditioner from the range. 

Blake said: 'They were like, "You have to have a conditioner offering because if people don't see that you have conditioner, they'll go to someone else with a conditioner and then you may lose the shampoo sale also."

 'I said, "I know, but that feels dishonest because I use masks. Every single wash. I don't want to offer conditioner just to offer it."' 

While Blake won that battle, it remains to be seen if her brand's innovation in haircare will turn into a full-blown revolution.