There was plenty to be mesmerised by when Tate McRae arrived at Paris Fashion Week: her impeccably tailored cream satin skirt suit! That glowy skin! The perfect pinky-nude lip! But it was her long, thick hair for the Schiaparelli show, which was styled by Evanie Frausto and almost as golden and shiny as Tate’s metallic clutch, that properly stole the show.

“Because it was Schaparelli, I wanted to play into making a blowout feel sculptural,” Frausto tells . The L’Oreal Professional Products ambassador swears by strong base prep, explaining that his go-to is a blow dry set with rollers and spritzed with Redken’s beach salt and volumising sprays to build volume. “I take the prep very seriously because I feel like when you build the hair from that start, it just has amazing memory and just holds up so much better.”

“After I took it down, I used a classic curling iron set and then brushed it out. There was a bit of teasing, but then it’s just sculpting – making sure that the waves are all hitting in the right place,” he explains. Eagle-eyed McRae fans might have spied the teensy detail hairs that Frausto moulded, using a bit of gel to keep them in place. To lock in the look stiffness, Frausto says he uses Redken Shine Flash. “I feel like oil-based products kind of always fight against drier hairspray products. It softens them up a little bit, so it doesn’t feel too stiff”.

As for how to achieve McRae’s enviable length and density? Award-winning hair extensionist Inanch Emir (who’s also to thank for Olivia Colman’s new silvery long mane) has plenty of tips. “The secret to achieving really long hair isn’t simply making it grow faster; it’s retaining the length you grow. Most people’s hair is continuously growing, but if the ends are breaking at a similar rate, you’ll never see that beautiful long length,” she says.

Although she stresses there’s no miracle solution, she recommends regular small trims, minimising heat and chemical damage, and keeping the mid-lengths and ends well conditioned in order to reduce breakage. She adds that those with curly and coily hair should pay particular attention to moisturising, detangle carefully in the shower using conditioner, and avoid constantly manipulating the curl pattern.

While Emir says that hair density is largely determined by genetics, both experts agree that the right haircut can create the impression of volume. “If you’re going for thicker hair, I would definitely stick to a scissor cut over one overly shagged out with a razor. Scissors help keep all of that density,” Frausto says, recommending long layers like Tate’s. And although McRae’s blowout was mainly her natural hair, Frausto notes that extensions were used to give it an extra boost. “Extensions are wonderful when you want length, density or both without waiting years for your natural hair to get there. They can also be incredibly effective for filling finer areas or creating volume without dramatically changing the overall length,” adds Emir.

While Emir says extensions should be customised to each individual, she advises those with fine hair to try discreet individual polymer bonds. Those with medium to thick hair might want to explore individual bonds, micro rings or wefts, and people with coily and curly hair should choose extensions that resemble their natural texture.