WHILE WE ADORE the hot, humid months of summer, they’re rough on hair. Fighting frizz or limp locks deflated by the heat becomes a losing battle, and many a beloved blow drier is hastily wrapped up by its own cord and chucked under the sink for hibernation. Styling creams, pastes, and gels suddenly feel like one more thing to put on, when even jeans feel like sausage casings. It’s ponytail or bust.

But for those of us like Bianca Dueñas (and there aren’t too many like her—otherwise we’d be tripping over ourselves gawking at every passerby), the goal is to whip our hair into the best shape possible, with as little effort as possible. Her variegated blond bob has become somewhat of a personal style signature for the New York-based, Spanish-Italian fashion exec, who opts to wear her hair “wavy, because it’s low-maintenance.” And while it’s true that “a good cut and color go a long way,” even Bianca needs a bit of additional assistance come Memorial Day. We thought she’d be the perfect girl to try out Bumble and bumble’s new Hairdresser’s Invisible Oil, created because Bumble’s hairstylists couldn’t find a formula that was clear and lightweight, yet able to soften all hair types to achieve “feathersoftness” and shine—minus the dreaded greasy look or feel.

It’s pretty safe to say that Bumble and bumble is the cool-crowd’s answer to luxury hair care (it’s stocked at Colette—enough said). So, where better to test out the brand’s summer launch than at the cool-kid’s answer to the Hamptons—or “Williamsburg on the Beach,” as a friend put it—Rockaway Beach and Fort Tilden? We swung by Bianca’s apartment at 10 AM on a soon-to-be-sweltering Sunday and helped her pack a beach bag for our outer-borough excursion. Our only prep request? We asked her to pump a few drops of the tropical-scented oil into her hands and work into her hair post-shower (built-in UV protection!!), and let it air-dry. Then we hopped in the car and off we went to a little peninsula just off the southeast coast of Queens. You might need a map—we did.

Its not just the finishing touch, its the everything

She spent the better part of the morning dipping in and out of the water and…attracting the attention of Fort Tilden’s impressively buff lifeguards, who were running on the boardwalk, Baywatch-style. (They were off-duty, not to worry.) On their suggestion, we nipped over to hipster canteen Rockaway Taco, but not before Bianca twirled her now-sun-dried waves into submission with another helping of Bumble’s multi-oil (argan, coconut, macadamia nut, sweet almond, safflower seed…hungry yet?), multi-purpose product. After a quick outfit change and makeup application (matte orange lip pencil’s all you need), B dug into a Baja-style fish taco and fresh watermelon juice, mingling with her fellow weekend staycationers in the shack’s stamp-sized patio.

Fueled-up and itching for a bit more action, we channeled our inner fifteen-year-olds and GPS-ed our way to Coney Island, excited for a carefree joyride on the famed Cyclone roller coaster. Turns out “terrifying” was the better adjective for the experience… Let’s just say “vintage” is best left to clothing and accessories, not a bare-bones caboose that catapults you through the air at 60 MPH. At the end of the day, Bianca’s hair required a little TLC, so we sent her back to the big city with a bottle of Hairdresser’s Invisible Oil and instructions to mix a few squirts into her favorite conditioner for a DIY extra-deep-conditioning masque. See? It does exist—one hair product that does pretty much everything. Won’t your weekend bag be happy?

Bianca Dueñas photographed by Emily Weiss in New York on July 16th 2012