Every so often a beach read shows up in a swimsuit and leaves wearing something considerably heavier. “The Shampoo Effect,” Jenny Jackson’s latest, spends its first hundred pages convincing you it’s a sun-drenched romance about a woman who moves to a picturesque coastal town and falls for a floppy-haired local. Stick around. By the final chapters, it has quietly become a study of what happens when old friendships curdle and new love arrives with strings nobody mentioned.
Caroline Lash is 28, freshly awarded an eighteen-month writer’s residency in a beach cottage in the fictional Massachusetts town of Greenhead, and instantly out of her depth. A meet-cute involving a dropped jelly doughnut on a train introduces her to Van Whittaker, and what follows has the rhythm of a classic summer romance: stolen glances, small-town charm, a slow-building courtship. But Van comes with a lifelong circle of friends who have no interest in making room for an outsider, and Caroline’s arrival sets off a chain reaction the book’s title captures perfectly. A second squeeze of shampoo, applied to hair that’s already lathered, produces a disproportionate amount of suds. So it goes with old resentments and buried history once a new element gets introduced to a closed system.
What makes the novel work is Jackson’s refusal to let anyone stay simple. Caroline is sympathetic but not blameless; when she’s wronged by Van’s friends, her retaliation is petty enough to sting rather than satisfy. Van himself turns out to be less a prize than a puzzle, especially once his on-again, off-again ex resurfaces pregnant with a complication that predates Caroline entirely. Jackson, who spent years as a book editor before turning to fiction, writes with the instincts of someone who has read a thousand versions of this setup and knows exactly which beats to subvert.
Critics have largely embraced the book’s bait-and-switch structure. The consensus among reviewers is that it reads like a rom-com on the surface while doing the work of a sharper social novel underneath, tracing how midlife friend groups calcify and how painful it can be to actually break into one. Some have noted that the shift in tone, from breezy to genuinely melancholic, arrives abruptly enough to catch readers off guard if they came purely for escapism. Others have praised exactly that turn as the novel’s strongest asset, arguing that Jackson earns the heavier material by grounding it in specific, lived-in details about jealousy, loyalty, and the exhausting math of adult friendship.
The prose itself is unfussy and propulsive, built for exactly the kind of one-sitting reading a beach trip demands, but it rewards attention too. Small images recur and pay off later; a joke in chapter three becomes a gut-punch by chapter twenty. If “The Shampoo Effect” occasionally leans on familiar rom-com scaffolding, it uses that familiarity as camouflage for something sneakier and considerably more interesting.
Verdict: Pack it for the beach, but don’t expect to leave it entirely behind once the trip is over. Jackson has written a novel that knows exactly what it’s pretending to be.
As an Amazon Associate, VIRA Broadcasting earns from qualifying purchases.