The cast of Sex and the City 2 have such glossy hair because they have stopped shampooing so often.
Frank Barbosa and his team of 12 stylists kept Sarah Jessica Parker, Kim Cattrall, Cynthia Nixon and Kristin Davis looking perfectly groomed on the set of the second film adaptation of the US TV series.
Frank loved working with the women, and says the biggest tip he gave them was to stop washing their tresses every day.
"The one piece of advice I gave them was to stop shampooing so often," he said.
"It helps the natural balance of things."
Make-up was also an important part of the film. All four lead actresses had their own personal cosmetics specialists who focused on giving them beautiful looks.
"I was inspired by Blondie, Madonna and Kate Moss when creating Samantha's sexy look," Kim's make-up artist Kyra Panchenko said.
Sarah's make-up expert Judy Chin preferred to use a minimal amount of products to achieve a glamorous, sexy style.
"Sarah Jessica has beautiful eyes and a little black mascara goes a long way on her," Judy told British magazine More!
"I coated her lashes in black and finished with smoky, shimmery shadows."
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