Maura Higgins' Cannes look starts with this beauty staple. Instagram/MauraHiggins Talk about a bombshell budget buy. Reality TV star Maura Higgins shared a look inside her flight to the Cannes Film Festival in an Instagram Story yesterday. And we couldn’t help but notice the stylish “Love Island” star had a surprisingly affordable travel essential on hand:  L’Oréal Paris Plump Ambition pH Hyaluron Lip Oil . The brand ambassador appears to use the shade pH Rosé , a color-shifting formula that reacts to skin’s natural pH levels to create a bespoke tint, while keeping your pout supple and moisturized. L’Oréal Paris Plump Ambition pH Hyaluron Lip Oil L'Oréal Paris Made with hyaluronic acid and tripeptides, the formula offers volumizing shine with no sticky feel. It comes in a total of four universally flattering shades, like pH Berry Noir and Lilac — all of which get rave reviews from shoppers.…